71412440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 177012000

約数和(自身を除く): 105599560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1199, 1489, 2180, 2398, 2978, 4360, 4796, 5956, 5995, 7445, 9592, 11912, 11990, 14890, 16379, 23980, 29780, 32758, 47960, 59560, 65516, 81895, 131032, 162301, 163790, 324602, 327580, 649204, 655160, 811505, 1298408, 1623010, 1785311, 3246020, 3570622, 6492040, 7141244, 8926555, 14282488, 17853110, 35706220, 71412440]

約数ペア:

[(1, 71412440), (2, 35706220), (4, 17853110), (5, 14282488), (8, 8926555), (10, 7141244), (11, 6492040), (20, 3570622), (22, 3246020), (40, 1785311), (44, 1623010), (55, 1298408), (88, 811505), (109, 655160), (110, 649204), (218, 327580), (220, 324602), (436, 163790), (440, 162301), (545, 131032), (872, 81895), (1090, 65516), (1199, 59560), (1489, 47960), (2180, 32758), (2398, 29780), (2978, 23980), (4360, 16379), (4796, 14890), (5956, 11990), (5995, 11912), (7445, 9592)]