438340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 1096704

約数和(自身を除く): 658364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 101, 124, 140, 155, 202, 217, 310, 404, 434, 505, 620, 707, 868, 1010, 1085, 1414, 2020, 2170, 2828, 3131, 3535, 4340, 6262, 7070, 12524, 14140, 15655, 21917, 31310, 43834, 62620, 87668, 109585, 219170, 438340]

約数ペア:

[(1, 438340), (2, 219170), (4, 109585), (5, 87668), (7, 62620), (10, 43834), (14, 31310), (20, 21917), (28, 15655), (31, 14140), (35, 12524), (62, 7070), (70, 6262), (101, 4340), (124, 3535), (140, 3131), (155, 2828), (202, 2170), (217, 2020), (310, 1414), (404, 1085), (434, 1010), (505, 868), (620, 707)]