4642840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 11340000

約数和(自身を除く): 6697160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 149, 152, 164, 190, 205, 298, 328, 380, 410, 596, 745, 760, 779, 820, 1192, 1490, 1558, 1640, 2831, 2980, 3116, 3895, 5662, 5960, 6109, 6232, 7790, 11324, 12218, 14155, 15580, 22648, 24436, 28310, 30545, 31160, 48872, 56620, 61090, 113240, 116071, 122180, 232142, 244360, 464284, 580355, 928568, 1160710, 2321420, 4642840]

約数ペア:

[(1, 4642840), (2, 2321420), (4, 1160710), (5, 928568), (8, 580355), (10, 464284), (19, 244360), (20, 232142), (38, 122180), (40, 116071), (41, 113240), (76, 61090), (82, 56620), (95, 48872), (149, 31160), (152, 30545), (164, 28310), (190, 24436), (205, 22648), (298, 15580), (328, 14155), (380, 12218), (410, 11324), (596, 7790), (745, 6232), (760, 6109), (779, 5960), (820, 5662), (1192, 3895), (1490, 3116), (1558, 2980), (1640, 2831)]