15721214140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{182423}}^1$

素因数の和:182602

約数の個数: 48

約数和(自身を含む): 34324899840

約数和(自身を除く): 18603685700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2780, 4309, 8618, 17236, 21545, 43090, 86180, 182423, 364846, 729692, 912115, 1824230, 3648460, 5655113, 11310226, 22620452, 25356797, 28275565, 50713594, 56551130, 101427188, 113102260, 126783985, 253567970, 507135940, 786060707, 1572121414, 3144242828, 3930303535, 7860607070, 15721214140]

約数ペア:

[(1, 15721214140), (2, 7860607070), (4, 3930303535), (5, 3144242828), (10, 1572121414), (20, 786060707), (31, 507135940), (62, 253567970), (124, 126783985), (139, 113102260), (155, 101427188), (278, 56551130), (310, 50713594), (556, 28275565), (620, 25356797), (695, 22620452), (1390, 11310226), (2780, 5655113), (4309, 3648460), (8618, 1824230), (17236, 912115), (21545, 729692), (43090, 364846), (86180, 182423)]