71699920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1172

約数の個数: 80

約数和(自身を含む): 179720640

約数和(自身を除く): 108020720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 688, 760, 817, 860, 1097, 1520, 1634, 1720, 2194, 3268, 3440, 4085, 4388, 5485, 6536, 8170, 8776, 10970, 13072, 16340, 17552, 20843, 21940, 32680, 41686, 43880, 47171, 65360, 83372, 87760, 94342, 104215, 166744, 188684, 208430, 235855, 333488, 377368, 416860, 471710, 754736, 833720, 896249, 943420, 1667440, 1792498, 1886840, 3584996, 3773680, 4481245, 7169992, 8962490, 14339984, 17924980, 35849960, 71699920]

約数ペア:

[(1, 71699920), (2, 35849960), (4, 17924980), (5, 14339984), (8, 8962490), (10, 7169992), (16, 4481245), (19, 3773680), (20, 3584996), (38, 1886840), (40, 1792498), (43, 1667440), (76, 943420), (80, 896249), (86, 833720), (95, 754736), (152, 471710), (172, 416860), (190, 377368), (215, 333488), (304, 235855), (344, 208430), (380, 188684), (430, 166744), (688, 104215), (760, 94342), (817, 87760), (860, 83372), (1097, 65360), (1520, 47171), (1634, 43880), (1720, 41686), (2194, 32680), (3268, 21940), (3440, 20843), (4085, 17552), (4388, 16340), (5485, 13072), (6536, 10970), (8170, 8776)]