127840960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:498

約数の個数: 112

約数和(自身を含む): 332841600

約数和(自身を除く): 205000640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 79, 80, 104, 130, 158, 160, 208, 260, 316, 320, 389, 395, 416, 520, 632, 778, 790, 832, 1027, 1040, 1264, 1556, 1580, 1945, 2054, 2080, 2528, 3112, 3160, 3890, 4108, 4160, 5056, 5057, 5135, 6224, 6320, 7780, 8216, 10114, 10270, 12448, 12640, 15560, 16432, 20228, 20540, 24896, 25280, 25285, 30731, 31120, 32864, 40456, 41080, 50570, 61462, 62240, 65728, 80912, 82160, 101140, 122924, 124480, 153655, 161824, 164320, 202280, 245848, 307310, 323648, 328640, 399503, 404560, 491696, 614620, 799006, 809120, 983392, 1229240, 1598012, 1618240, 1966784, 1997515, 2458480, 3196024, 3995030, 4916960, 6392048, 7990060, 9833920, 12784096, 15980120, 25568192, 31960240, 63920480, 127840960]

約数ペア:

[(1, 127840960), (2, 63920480), (4, 31960240), (5, 25568192), (8, 15980120), (10, 12784096), (13, 9833920), (16, 7990060), (20, 6392048), (26, 4916960), (32, 3995030), (40, 3196024), (52, 2458480), (64, 1997515), (65, 1966784), (79, 1618240), (80, 1598012), (104, 1229240), (130, 983392), (158, 809120), (160, 799006), (208, 614620), (260, 491696), (316, 404560), (320, 399503), (389, 328640), (395, 323648), (416, 307310), (520, 245848), (632, 202280), (778, 164320), (790, 161824), (832, 153655), (1027, 124480), (1040, 122924), (1264, 101140), (1556, 82160), (1580, 80912), (1945, 65728), (2054, 62240), (2080, 61462), (2528, 50570), (3112, 41080), (3160, 40456), (3890, 32864), (4108, 31120), (4160, 30731), (5056, 25285), (5057, 25280), (5135, 24896), (6224, 20540), (6320, 20228), (7780, 16432), (8216, 15560), (10114, 12640), (10270, 12448)]