1811085890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{21517}}^1$

素因数の和:21986

約数の個数: 32

約数和(自身を含む): 3439437120

約数和(自身を除く): 1628351230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 443, 886, 2215, 4430, 8417, 16834, 21517, 42085, 43034, 84170, 107585, 215170, 408823, 817646, 2044115, 4088230, 9532031, 19064062, 47660155, 95320310, 181108589, 362217178, 905542945, 1811085890]

約数ペア:

[(1, 1811085890), (2, 905542945), (5, 362217178), (10, 181108589), (19, 95320310), (38, 47660155), (95, 19064062), (190, 9532031), (443, 4088230), (886, 2044115), (2215, 817646), (4430, 408823), (8417, 215170), (16834, 107585), (21517, 84170), (42085, 43034)]