81069960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 271684800

約数和(自身を除く): 190614840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 37, 38, 40, 57, 60, 62, 74, 76, 93, 95, 111, 114, 120, 124, 148, 152, 155, 185, 186, 190, 222, 228, 248, 285, 296, 310, 370, 372, 380, 444, 456, 465, 555, 570, 589, 620, 703, 740, 744, 760, 888, 930, 961, 1110, 1140, 1147, 1178, 1240, 1406, 1480, 1767, 1860, 1922, 2109, 2220, 2280, 2294, 2356, 2812, 2883, 2945, 3441, 3515, 3534, 3720, 3844, 4218, 4440, 4588, 4712, 4805, 5624, 5735, 5766, 5890, 6882, 7030, 7068, 7688, 8436, 8835, 9176, 9610, 10545, 11470, 11532, 11780, 13764, 14060, 14136, 14415, 16872, 17205, 17670, 18259, 19220, 21090, 21793, 22940, 23064, 23560, 27528, 28120, 28830, 34410, 35340, 35557, 36518, 38440, 42180, 43586, 45880, 54777, 57660, 65379, 68820, 70680, 71114, 73036, 84360, 87172, 91295, 106671, 108965, 109554, 115320, 130758, 137640, 142228, 146072, 174344, 177785, 182590, 213342, 217930, 219108, 261516, 273885, 284456, 326895, 355570, 365180, 426684, 435860, 438216, 523032, 533355, 547770, 653790, 675583, 711140, 730360, 853368, 871720, 1066710, 1095540, 1307580, 1351166, 1422280, 2026749, 2133420, 2191080, 2615160, 2702332, 3377915, 4053498, 4266840, 5404664, 6755830, 8106996, 10133745, 13511660, 16213992, 20267490, 27023320, 40534980, 81069960]

約数ペア:

[(1, 81069960), (2, 40534980), (3, 27023320), (4, 20267490), (5, 16213992), (6, 13511660), (8, 10133745), (10, 8106996), (12, 6755830), (15, 5404664), (19, 4266840), (20, 4053498), (24, 3377915), (30, 2702332), (31, 2615160), (37, 2191080), (38, 2133420), (40, 2026749), (57, 1422280), (60, 1351166), (62, 1307580), (74, 1095540), (76, 1066710), (93, 871720), (95, 853368), (111, 730360), (114, 711140), (120, 675583), (124, 653790), (148, 547770), (152, 533355), (155, 523032), (185, 438216), (186, 435860), (190, 426684), (222, 365180), (228, 355570), (248, 326895), (285, 284456), (296, 273885), (310, 261516), (370, 219108), (372, 217930), (380, 213342), (444, 182590), (456, 177785), (465, 174344), (555, 146072), (570, 142228), (589, 137640), (620, 130758), (703, 115320), (740, 109554), (744, 108965), (760, 106671), (888, 91295), (930, 87172), (961, 84360), (1110, 73036), (1140, 71114), (1147, 70680), (1178, 68820), (1240, 65379), (1406, 57660), (1480, 54777), (1767, 45880), (1860, 43586), (1922, 42180), (2109, 38440), (2220, 36518), (2280, 35557), (2294, 35340), (2356, 34410), (2812, 28830), (2883, 28120), (2945, 27528), (3441, 23560), (3515, 23064), (3534, 22940), (3720, 21793), (3844, 21090), (4218, 19220), (4440, 18259), (4588, 17670), (4712, 17205), (4805, 16872), (5624, 14415), (5735, 14136), (5766, 14060), (5890, 13764), (6882, 11780), (7030, 11532), (7068, 11470), (7688, 10545), (8436, 9610), (8835, 9176)]