12561617560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{27947}}^1$

素因数の和:28636

約数の個数: 64

約数和(自身を含む): 29972553120

約数和(自身を除く): 17410935560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 661, 680, 1322, 2644, 3305, 5288, 6610, 11237, 13220, 22474, 26440, 27947, 44948, 55894, 56185, 89896, 111788, 112370, 139735, 223576, 224740, 279470, 449480, 475099, 558940, 950198, 1117880, 1900396, 2375495, 3800792, 4750990, 9501980, 18472967, 19003960, 36945934, 73891868, 92364835, 147783736, 184729670, 314040439, 369459340, 628080878, 738918680, 1256161756, 1570202195, 2512323512, 3140404390, 6280808780, 12561617560]

約数ペア:

[(1, 12561617560), (2, 6280808780), (4, 3140404390), (5, 2512323512), (8, 1570202195), (10, 1256161756), (17, 738918680), (20, 628080878), (34, 369459340), (40, 314040439), (68, 184729670), (85, 147783736), (136, 92364835), (170, 73891868), (340, 36945934), (661, 19003960), (680, 18472967), (1322, 9501980), (2644, 4750990), (3305, 3800792), (5288, 2375495), (6610, 1900396), (11237, 1117880), (13220, 950198), (22474, 558940), (26440, 475099), (27947, 449480), (44948, 279470), (55894, 224740), (56185, 223576), (89896, 139735), (111788, 112370)]