164756800

素因数分解:

$2^6\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^2$

素因数の和:213

約数の個数: 126

約数和(自身を含む): 441550298

約数和(自身を除く): 276793498

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 89, 100, 104, 130, 160, 178, 200, 208, 260, 320, 325, 356, 400, 416, 445, 520, 650, 712, 800, 832, 890, 1040, 1157, 1300, 1424, 1600, 1780, 2080, 2225, 2314, 2600, 2848, 3560, 4160, 4450, 4628, 5200, 5696, 5785, 7120, 7921, 8900, 9256, 10400, 11570, 14240, 15842, 17800, 18512, 20800, 23140, 28480, 28925, 31684, 35600, 37024, 39605, 46280, 57850, 63368, 71200, 74048, 79210, 92560, 102973, 115700, 126736, 142400, 158420, 185120, 198025, 205946, 231400, 253472, 316840, 370240, 396050, 411892, 462800, 506944, 514865, 633680, 792100, 823784, 925600, 1029730, 1267360, 1584200, 1647568, 1851200, 2059460, 2534720, 2574325, 3168400, 3295136, 4118920, 5148650, 6336800, 6590272, 8237840, 10297300, 12673600, 16475680, 20594600, 32951360, 41189200, 82378400, 164756800]

約数ペア:

[(1, 164756800), (2, 82378400), (4, 41189200), (5, 32951360), (8, 20594600), (10, 16475680), (13, 12673600), (16, 10297300), (20, 8237840), (25, 6590272), (26, 6336800), (32, 5148650), (40, 4118920), (50, 3295136), (52, 3168400), (64, 2574325), (65, 2534720), (80, 2059460), (89, 1851200), (100, 1647568), (104, 1584200), (130, 1267360), (160, 1029730), (178, 925600), (200, 823784), (208, 792100), (260, 633680), (320, 514865), (325, 506944), (356, 462800), (400, 411892), (416, 396050), (445, 370240), (520, 316840), (650, 253472), (712, 231400), (800, 205946), (832, 198025), (890, 185120), (1040, 158420), (1157, 142400), (1300, 126736), (1424, 115700), (1600, 102973), (1780, 92560), (2080, 79210), (2225, 74048), (2314, 71200), (2600, 63368), (2848, 57850), (3560, 46280), (4160, 39605), (4450, 37024), (4628, 35600), (5200, 31684), (5696, 28925), (5785, 28480), (7120, 23140), (7921, 20800), (8900, 18512), (9256, 17800), (10400, 15842), (11570, 14240)]