78393220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 167791680

約数和(自身を除く): 89398460

約数列:

[1, 2, 4, 5, 10, 20, 139, 163, 173, 278, 326, 346, 556, 652, 692, 695, 815, 865, 1390, 1630, 1730, 2780, 3260, 3460, 22657, 24047, 28199, 45314, 48094, 56398, 90628, 96188, 112796, 113285, 120235, 140995, 226570, 240470, 281990, 453140, 480940, 563980, 3919661, 7839322, 15678644, 19598305, 39196610, 78393220]

約数ペア:

[(1, 78393220), (2, 39196610), (4, 19598305), (5, 15678644), (10, 7839322), (20, 3919661), (139, 563980), (163, 480940), (173, 453140), (278, 281990), (326, 240470), (346, 226570), (556, 140995), (652, 120235), (692, 113285), (695, 112796), (815, 96188), (865, 90628), (1390, 56398), (1630, 48094), (1730, 45314), (2780, 28199), (3260, 24047), (3460, 22657)]