12720227560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3739}}^1\times {\mathrm{5003}}^1$

素因数の和:8770

約数の個数: 64

約数和(自身を含む): 30318235200

約数和(自身を除く): 17598007640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3739, 5003, 7478, 10006, 14956, 18695, 20012, 25015, 29912, 37390, 40024, 50030, 63563, 74780, 85051, 100060, 127126, 149560, 170102, 200120, 254252, 317815, 340204, 425255, 508504, 635630, 680408, 850510, 1271260, 1701020, 2542520, 3402040, 18706217, 37412434, 74824868, 93531085, 149649736, 187062170, 318005689, 374124340, 636011378, 748248680, 1272022756, 1590028445, 2544045512, 3180056890, 6360113780, 12720227560]

約数ペア:

[(1, 12720227560), (2, 6360113780), (4, 3180056890), (5, 2544045512), (8, 1590028445), (10, 1272022756), (17, 748248680), (20, 636011378), (34, 374124340), (40, 318005689), (68, 187062170), (85, 149649736), (136, 93531085), (170, 74824868), (340, 37412434), (680, 18706217), (3739, 3402040), (5003, 2542520), (7478, 1701020), (10006, 1271260), (14956, 850510), (18695, 680408), (20012, 635630), (25015, 508504), (29912, 425255), (37390, 340204), (40024, 317815), (50030, 254252), (63563, 200120), (74780, 170102), (85051, 149560), (100060, 127126)]