261688440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 849945600

約数和(自身を除く): 588257160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 271, 312, 390, 520, 542, 619, 780, 813, 1084, 1238, 1355, 1560, 1626, 1857, 2168, 2476, 2710, 3095, 3252, 3523, 3714, 4065, 4952, 5420, 6190, 6504, 7046, 7428, 8047, 8130, 9285, 10569, 10840, 12380, 14092, 14856, 16094, 16260, 17615, 18570, 21138, 24141, 24760, 28184, 32188, 32520, 35230, 37140, 40235, 42276, 48282, 52845, 64376, 70460, 74280, 80470, 84552, 96564, 105690, 120705, 140920, 160940, 167749, 193128, 211380, 241410, 321880, 335498, 422760, 482820, 503247, 670996, 838745, 965640, 1006494, 1341992, 1677490, 2012988, 2180737, 2516235, 3354980, 4025976, 4361474, 5032470, 6542211, 6709960, 8722948, 10064940, 10903685, 13084422, 17445896, 20129880, 21807370, 26168844, 32711055, 43614740, 52337688, 65422110, 87229480, 130844220, 261688440]

約数ペア:

[(1, 261688440), (2, 130844220), (3, 87229480), (4, 65422110), (5, 52337688), (6, 43614740), (8, 32711055), (10, 26168844), (12, 21807370), (13, 20129880), (15, 17445896), (20, 13084422), (24, 10903685), (26, 10064940), (30, 8722948), (39, 6709960), (40, 6542211), (52, 5032470), (60, 4361474), (65, 4025976), (78, 3354980), (104, 2516235), (120, 2180737), (130, 2012988), (156, 1677490), (195, 1341992), (260, 1006494), (271, 965640), (312, 838745), (390, 670996), (520, 503247), (542, 482820), (619, 422760), (780, 335498), (813, 321880), (1084, 241410), (1238, 211380), (1355, 193128), (1560, 167749), (1626, 160940), (1857, 140920), (2168, 120705), (2476, 105690), (2710, 96564), (3095, 84552), (3252, 80470), (3523, 74280), (3714, 70460), (4065, 64376), (4952, 52845), (5420, 48282), (6190, 42276), (6504, 40235), (7046, 37140), (7428, 35230), (8047, 32520), (8130, 32188), (9285, 28184), (10569, 24760), (10840, 24141), (12380, 21138), (14092, 18570), (14856, 17615), (16094, 16260)]