639720120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:350

約数の個数: 256

約数和(自身を含む): 2206310400

約数和(自身を除く): 1566590280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 113, 114, 120, 130, 152, 156, 190, 191, 195, 226, 228, 247, 260, 285, 312, 339, 380, 382, 390, 452, 456, 494, 520, 565, 570, 573, 678, 741, 760, 764, 780, 904, 955, 988, 1130, 1140, 1146, 1235, 1356, 1469, 1482, 1528, 1560, 1695, 1910, 1976, 2147, 2260, 2280, 2292, 2470, 2483, 2712, 2865, 2938, 2964, 3390, 3629, 3705, 3820, 4294, 4407, 4520, 4584, 4940, 4966, 5730, 5876, 5928, 6441, 6780, 7258, 7345, 7410, 7449, 7640, 8588, 8814, 9880, 9932, 10735, 10887, 11460, 11752, 12415, 12882, 13560, 14516, 14690, 14820, 14898, 17176, 17628, 18145, 19864, 21470, 21583, 21774, 22035, 22920, 24830, 25764, 27911, 29032, 29380, 29640, 29796, 32205, 35256, 36290, 37245, 42940, 43166, 43548, 44070, 47177, 49660, 51528, 54435, 55822, 58760, 59592, 64410, 64749, 72580, 74490, 83733, 85880, 86332, 87096, 88140, 94354, 99320, 107915, 108870, 111644, 128820, 129498, 139555, 141531, 145160, 148980, 167466, 172664, 176280, 188708, 215830, 217740, 223288, 235885, 257640, 258996, 279110, 280579, 283062, 297960, 323745, 334932, 377416, 410077, 418665, 431660, 435480, 471770, 517992, 558220, 561158, 566124, 647490, 669864, 707655, 820154, 837330, 841737, 863320, 943540, 1116440, 1122316, 1132248, 1230231, 1294980, 1402895, 1415310, 1640308, 1674660, 1683474, 1887080, 2050385, 2244632, 2460462, 2589960, 2805790, 2830620, 3280616, 3349320, 3366948, 4100770, 4208685, 4920924, 5331001, 5611580, 5661240, 6151155, 6733896, 8201540, 8417370, 9841848, 10662002, 11223160, 12302310, 15993003, 16403080, 16834740, 21324004, 24604620, 26655005, 31986006, 33669480, 42648008, 49209240, 53310010, 63972012, 79965015, 106620020, 127944024, 159930030, 213240040, 319860060, 639720120]

約数ペア:

[(1, 639720120), (2, 319860060), (3, 213240040), (4, 159930030), (5, 127944024), (6, 106620020), (8, 79965015), (10, 63972012), (12, 53310010), (13, 49209240), (15, 42648008), (19, 33669480), (20, 31986006), (24, 26655005), (26, 24604620), (30, 21324004), (38, 16834740), (39, 16403080), (40, 15993003), (52, 12302310), (57, 11223160), (60, 10662002), (65, 9841848), (76, 8417370), (78, 8201540), (95, 6733896), (104, 6151155), (113, 5661240), (114, 5611580), (120, 5331001), (130, 4920924), (152, 4208685), (156, 4100770), (190, 3366948), (191, 3349320), (195, 3280616), (226, 2830620), (228, 2805790), (247, 2589960), (260, 2460462), (285, 2244632), (312, 2050385), (339, 1887080), (380, 1683474), (382, 1674660), (390, 1640308), (452, 1415310), (456, 1402895), (494, 1294980), (520, 1230231), (565, 1132248), (570, 1122316), (573, 1116440), (678, 943540), (741, 863320), (760, 841737), (764, 837330), (780, 820154), (904, 707655), (955, 669864), (988, 647490), (1130, 566124), (1140, 561158), (1146, 558220), (1235, 517992), (1356, 471770), (1469, 435480), (1482, 431660), (1528, 418665), (1560, 410077), (1695, 377416), (1910, 334932), (1976, 323745), (2147, 297960), (2260, 283062), (2280, 280579), (2292, 279110), (2470, 258996), (2483, 257640), (2712, 235885), (2865, 223288), (2938, 217740), (2964, 215830), (3390, 188708), (3629, 176280), (3705, 172664), (3820, 167466), (4294, 148980), (4407, 145160), (4520, 141531), (4584, 139555), (4940, 129498), (4966, 128820), (5730, 111644), (5876, 108870), (5928, 107915), (6441, 99320), (6780, 94354), (7258, 88140), (7345, 87096), (7410, 86332), (7449, 85880), (7640, 83733), (8588, 74490), (8814, 72580), (9880, 64749), (9932, 64410), (10735, 59592), (10887, 58760), (11460, 55822), (11752, 54435), (12415, 51528), (12882, 49660), (13560, 47177), (14516, 44070), (14690, 43548), (14820, 43166), (14898, 42940), (17176, 37245), (17628, 36290), (18145, 35256), (19864, 32205), (21470, 29796), (21583, 29640), (21774, 29380), (22035, 29032), (22920, 27911), (24830, 25764)]