38949640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 91653120

約数和(自身を除く): 52703480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 311, 404, 505, 620, 622, 808, 1010, 1240, 1244, 1555, 2020, 2488, 3110, 3131, 4040, 6220, 6262, 9641, 12440, 12524, 15655, 19282, 25048, 31310, 31411, 38564, 48205, 62620, 62822, 77128, 96410, 125240, 125644, 157055, 192820, 251288, 314110, 385640, 628220, 973741, 1256440, 1947482, 3894964, 4868705, 7789928, 9737410, 19474820, 38949640]

約数ペア:

[(1, 38949640), (2, 19474820), (4, 9737410), (5, 7789928), (8, 4868705), (10, 3894964), (20, 1947482), (31, 1256440), (40, 973741), (62, 628220), (101, 385640), (124, 314110), (155, 251288), (202, 192820), (248, 157055), (310, 125644), (311, 125240), (404, 96410), (505, 77128), (620, 62822), (622, 62620), (808, 48205), (1010, 38564), (1240, 31411), (1244, 31310), (1555, 25048), (2020, 19282), (2488, 15655), (3110, 12524), (3131, 12440), (4040, 9641), (6220, 6262)]