20775890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2378

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 19175470

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2311, 4495, 4622, 8990, 11555, 23110, 67019, 71641, 134038, 143282, 335095, 358205, 670190, 716410, 2077589, 4155178, 10387945, 20775890]

約数ペア:

[(1, 20775890), (2, 10387945), (5, 4155178), (10, 2077589), (29, 716410), (31, 670190), (58, 358205), (62, 335095), (145, 143282), (155, 134038), (290, 71641), (310, 67019), (899, 23110), (1798, 11555), (2311, 8990), (4495, 4622)]