2321420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 5292000

約数和(自身を除く): 2970580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 149, 164, 190, 205, 298, 380, 410, 596, 745, 779, 820, 1490, 1558, 2831, 2980, 3116, 3895, 5662, 6109, 7790, 11324, 12218, 14155, 15580, 24436, 28310, 30545, 56620, 61090, 116071, 122180, 232142, 464284, 580355, 1160710, 2321420]

約数ペア:

[(1, 2321420), (2, 1160710), (4, 580355), (5, 464284), (10, 232142), (19, 122180), (20, 116071), (38, 61090), (41, 56620), (76, 30545), (82, 28310), (95, 24436), (149, 15580), (164, 14155), (190, 12218), (205, 11324), (298, 7790), (380, 6109), (410, 5662), (596, 3895), (745, 3116), (779, 2980), (820, 2831), (1490, 1558)]