19474820

素因数分解:

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

素因数の和:452

約数の個数: 48

約数和(自身を含む): 42771456

約数和(自身を除く): 23296636

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 311, 404, 505, 620, 622, 1010, 1244, 1555, 2020, 3110, 3131, 6220, 6262, 9641, 12524, 15655, 19282, 31310, 31411, 38564, 48205, 62620, 62822, 96410, 125644, 157055, 192820, 314110, 628220, 973741, 1947482, 3894964, 4868705, 9737410, 19474820]

約数ペア:

[(1, 19474820), (2, 9737410), (4, 4868705), (5, 3894964), (10, 1947482), (20, 973741), (31, 628220), (62, 314110), (101, 192820), (124, 157055), (155, 125644), (202, 96410), (310, 62822), (311, 62620), (404, 48205), (505, 38564), (620, 31411), (622, 31310), (1010, 19282), (1244, 15655), (1555, 12524), (2020, 9641), (3110, 6262), (3131, 6220)]