64840920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28439}}^1$

素因数の和:28472

約数の個数: 64

約数和(自身を含む): 204768000

約数和(自身を除く): 139927080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 28439, 56878, 85317, 113756, 142195, 170634, 227512, 284390, 341268, 426585, 540341, 568780, 682536, 853170, 1080682, 1137560, 1621023, 1706340, 2161364, 2701705, 3242046, 3412680, 4322728, 5403410, 6484092, 8105115, 10806820, 12968184, 16210230, 21613640, 32420460, 64840920]

約数ペア:

[(1, 64840920), (2, 32420460), (3, 21613640), (4, 16210230), (5, 12968184), (6, 10806820), (8, 8105115), (10, 6484092), (12, 5403410), (15, 4322728), (19, 3412680), (20, 3242046), (24, 2701705), (30, 2161364), (38, 1706340), (40, 1621023), (57, 1137560), (60, 1080682), (76, 853170), (95, 682536), (114, 568780), (120, 540341), (152, 426585), (190, 341268), (228, 284390), (285, 227512), (380, 170634), (456, 142195), (570, 113756), (760, 85317), (1140, 56878), (2280, 28439)]