80989700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 209236608

約数和(自身を除く): 128246908

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 61, 68, 71, 85, 100, 110, 122, 142, 170, 187, 220, 244, 275, 284, 305, 340, 355, 374, 425, 550, 610, 671, 710, 748, 781, 850, 935, 1037, 1100, 1207, 1220, 1342, 1420, 1525, 1562, 1700, 1775, 1870, 2074, 2414, 2684, 3050, 3124, 3355, 3550, 3740, 3905, 4148, 4331, 4675, 4828, 5185, 6035, 6100, 6710, 7100, 7810, 8662, 9350, 10370, 11407, 12070, 13277, 13420, 15620, 16775, 17324, 18700, 19525, 20740, 21655, 22814, 24140, 25925, 26554, 30175, 33550, 39050, 43310, 45628, 47641, 51850, 53108, 57035, 60350, 66385, 67100, 73627, 78100, 86620, 95282, 103700, 108275, 114070, 120700, 132770, 147254, 190564, 216550, 228140, 238205, 265540, 285175, 294508, 331925, 368135, 433100, 476410, 570350, 663850, 736270, 809897, 952820, 1140700, 1191025, 1327700, 1472540, 1619794, 1840675, 2382050, 3239588, 3681350, 4049485, 4764100, 7362700, 8098970, 16197940, 20247425, 40494850, 80989700]

約数ペア:

[(1, 80989700), (2, 40494850), (4, 20247425), (5, 16197940), (10, 8098970), (11, 7362700), (17, 4764100), (20, 4049485), (22, 3681350), (25, 3239588), (34, 2382050), (44, 1840675), (50, 1619794), (55, 1472540), (61, 1327700), (68, 1191025), (71, 1140700), (85, 952820), (100, 809897), (110, 736270), (122, 663850), (142, 570350), (170, 476410), (187, 433100), (220, 368135), (244, 331925), (275, 294508), (284, 285175), (305, 265540), (340, 238205), (355, 228140), (374, 216550), (425, 190564), (550, 147254), (610, 132770), (671, 120700), (710, 114070), (748, 108275), (781, 103700), (850, 95282), (935, 86620), (1037, 78100), (1100, 73627), (1207, 67100), (1220, 66385), (1342, 60350), (1420, 57035), (1525, 53108), (1562, 51850), (1700, 47641), (1775, 45628), (1870, 43310), (2074, 39050), (2414, 33550), (2684, 30175), (3050, 26554), (3124, 25925), (3355, 24140), (3550, 22814), (3740, 21655), (3905, 20740), (4148, 19525), (4331, 18700), (4675, 17324), (4828, 16775), (5185, 15620), (6035, 13420), (6100, 13277), (6710, 12070), (7100, 11407), (7810, 10370), (8662, 9350)]