40648220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2609}}^1$

素因数の和:2678

約数の個数: 48

約数和(自身を含む): 92080800

約数和(自身を除く): 51432580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 2609, 3116, 3895, 5218, 7790, 10436, 13045, 15580, 26090, 49571, 52180, 99142, 106969, 198284, 213938, 247855, 427876, 495710, 534845, 991420, 1069690, 2032411, 2139380, 4064822, 8129644, 10162055, 20324110, 40648220]

約数ペア:

[(1, 40648220), (2, 20324110), (4, 10162055), (5, 8129644), (10, 4064822), (19, 2139380), (20, 2032411), (38, 1069690), (41, 991420), (76, 534845), (82, 495710), (95, 427876), (164, 247855), (190, 213938), (205, 198284), (380, 106969), (410, 99142), (779, 52180), (820, 49571), (1558, 26090), (2609, 15580), (3116, 13045), (3895, 10436), (5218, 7790)]