20306580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6907}}^1$

素因数の和:6933

約数の個数: 72

約数和(自身を含む): 66151008

約数和(自身を除く): 45844428

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6907, 13814, 20721, 27628, 34535, 41442, 48349, 69070, 82884, 96698, 103605, 138140, 145047, 193396, 207210, 241745, 290094, 338443, 414420, 483490, 580188, 676886, 725235, 966980, 1015329, 1353772, 1450470, 1692215, 2030658, 2900940, 3384430, 4061316, 5076645, 6768860, 10153290, 20306580]

約数ペア:

[(1, 20306580), (2, 10153290), (3, 6768860), (4, 5076645), (5, 4061316), (6, 3384430), (7, 2900940), (10, 2030658), (12, 1692215), (14, 1450470), (15, 1353772), (20, 1015329), (21, 966980), (28, 725235), (30, 676886), (35, 580188), (42, 483490), (49, 414420), (60, 338443), (70, 290094), (84, 241745), (98, 207210), (105, 193396), (140, 145047), (147, 138140), (196, 103605), (210, 96698), (245, 82884), (294, 69070), (420, 48349), (490, 41442), (588, 34535), (735, 27628), (980, 20721), (1470, 13814), (2940, 6907)]