208720980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{467}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 686859264

約数和(自身を除く): 478138284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 191, 195, 234, 260, 382, 390, 467, 468, 573, 585, 764, 780, 934, 955, 1146, 1170, 1401, 1719, 1868, 1910, 2292, 2335, 2340, 2483, 2802, 2865, 3438, 3820, 4203, 4670, 4966, 5604, 5730, 6071, 6876, 7005, 7449, 8406, 8595, 9340, 9932, 11460, 12142, 12415, 14010, 14898, 16812, 17190, 18213, 21015, 22347, 24284, 24830, 28020, 29796, 30355, 34380, 36426, 37245, 42030, 44694, 49660, 54639, 60710, 72852, 74490, 84060, 89197, 89388, 91065, 109278, 111735, 121420, 148980, 178394, 182130, 218556, 223470, 267591, 273195, 356788, 364260, 445985, 446940, 535182, 546390, 802773, 891970, 1070364, 1092780, 1159561, 1337955, 1605546, 1783940, 2319122, 2675910, 3211092, 3478683, 4013865, 4638244, 5351820, 5797805, 6957366, 8027730, 10436049, 11595610, 13914732, 16055460, 17393415, 20872098, 23191220, 34786830, 41744196, 52180245, 69573660, 104360490, 208720980]

約数ペア:

[(1, 208720980), (2, 104360490), (3, 69573660), (4, 52180245), (5, 41744196), (6, 34786830), (9, 23191220), (10, 20872098), (12, 17393415), (13, 16055460), (15, 13914732), (18, 11595610), (20, 10436049), (26, 8027730), (30, 6957366), (36, 5797805), (39, 5351820), (45, 4638244), (52, 4013865), (60, 3478683), (65, 3211092), (78, 2675910), (90, 2319122), (117, 1783940), (130, 1605546), (156, 1337955), (180, 1159561), (191, 1092780), (195, 1070364), (234, 891970), (260, 802773), (382, 546390), (390, 535182), (467, 446940), (468, 445985), (573, 364260), (585, 356788), (764, 273195), (780, 267591), (934, 223470), (955, 218556), (1146, 182130), (1170, 178394), (1401, 148980), (1719, 121420), (1868, 111735), (1910, 109278), (2292, 91065), (2335, 89388), (2340, 89197), (2483, 84060), (2802, 74490), (2865, 72852), (3438, 60710), (3820, 54639), (4203, 49660), (4670, 44694), (4966, 42030), (5604, 37245), (5730, 36426), (6071, 34380), (6876, 30355), (7005, 29796), (7449, 28020), (8406, 24830), (8595, 24284), (9340, 22347), (9932, 21015), (11460, 18213), (12142, 17190), (12415, 16812), (14010, 14898)]