78400080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:570

約数の個数: 240

約数和(自身を含む): 302927040

約数和(自身を除く): 224526960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 99, 110, 114, 120, 132, 144, 152, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 285, 304, 330, 342, 360, 380, 396, 418, 440, 456, 495, 521, 528, 570, 627, 660, 684, 720, 760, 792, 836, 855, 880, 912, 990, 1042, 1045, 1140, 1254, 1320, 1368, 1520, 1563, 1584, 1672, 1710, 1881, 1980, 2084, 2090, 2280, 2508, 2605, 2640, 2736, 3126, 3135, 3344, 3420, 3762, 3960, 4168, 4180, 4560, 4689, 5016, 5210, 5731, 6252, 6270, 6840, 7524, 7815, 7920, 8336, 8360, 9378, 9405, 9899, 10032, 10420, 11462, 12504, 12540, 13680, 15048, 15630, 16720, 17193, 18756, 18810, 19798, 20840, 22924, 23445, 25008, 25080, 28655, 29697, 30096, 31260, 34386, 37512, 37620, 39596, 41680, 45848, 46890, 49495, 50160, 51579, 57310, 59394, 62520, 68772, 75024, 75240, 79192, 85965, 89091, 91696, 93780, 98990, 103158, 108889, 114620, 118788, 125040, 137544, 148485, 150480, 158384, 171930, 178182, 187560, 197980, 206316, 217778, 229240, 237576, 257895, 275088, 296970, 326667, 343860, 356364, 375120, 395960, 412632, 435556, 445455, 458480, 475152, 515790, 544445, 593940, 653334, 687720, 712728, 791920, 825264, 871112, 890910, 980001, 1031580, 1088890, 1187880, 1306668, 1375440, 1425456, 1633335, 1742224, 1781820, 1960002, 2063160, 2177780, 2375760, 2613336, 3266670, 3563640, 3920004, 4126320, 4355560, 4900005, 5226672, 6533340, 7127280, 7840008, 8711120, 9800010, 13066680, 15680016, 19600020, 26133360, 39200040, 78400080]

約数ペア:

[(1, 78400080), (2, 39200040), (3, 26133360), (4, 19600020), (5, 15680016), (6, 13066680), (8, 9800010), (9, 8711120), (10, 7840008), (11, 7127280), (12, 6533340), (15, 5226672), (16, 4900005), (18, 4355560), (19, 4126320), (20, 3920004), (22, 3563640), (24, 3266670), (30, 2613336), (33, 2375760), (36, 2177780), (38, 2063160), (40, 1960002), (44, 1781820), (45, 1742224), (48, 1633335), (55, 1425456), (57, 1375440), (60, 1306668), (66, 1187880), (72, 1088890), (76, 1031580), (80, 980001), (88, 890910), (90, 871112), (95, 825264), (99, 791920), (110, 712728), (114, 687720), (120, 653334), (132, 593940), (144, 544445), (152, 515790), (165, 475152), (171, 458480), (176, 445455), (180, 435556), (190, 412632), (198, 395960), (209, 375120), (220, 356364), (228, 343860), (240, 326667), (264, 296970), (285, 275088), (304, 257895), (330, 237576), (342, 229240), (360, 217778), (380, 206316), (396, 197980), (418, 187560), (440, 178182), (456, 171930), (495, 158384), (521, 150480), (528, 148485), (570, 137544), (627, 125040), (660, 118788), (684, 114620), (720, 108889), (760, 103158), (792, 98990), (836, 93780), (855, 91696), (880, 89091), (912, 85965), (990, 79192), (1042, 75240), (1045, 75024), (1140, 68772), (1254, 62520), (1320, 59394), (1368, 57310), (1520, 51579), (1563, 50160), (1584, 49495), (1672, 46890), (1710, 45848), (1881, 41680), (1980, 39596), (2084, 37620), (2090, 37512), (2280, 34386), (2508, 31260), (2605, 30096), (2640, 29697), (2736, 28655), (3126, 25080), (3135, 25008), (3344, 23445), (3420, 22924), (3762, 20840), (3960, 19798), (4168, 18810), (4180, 18756), (4560, 17193), (4689, 16720), (5016, 15630), (5210, 15048), (5731, 13680), (6252, 12540), (6270, 12504), (6840, 11462), (7524, 10420), (7815, 10032), (7920, 9899), (8336, 9405), (8360, 9378)]