28541940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67957}}^1$

素因数の和:67976

約数の個数: 48

約数和(自身を含む): 91335552

約数和(自身を除く): 62793612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67957, 135914, 203871, 271828, 339785, 407742, 475699, 679570, 815484, 951398, 1019355, 1359140, 1427097, 1902796, 2038710, 2378495, 2854194, 4077420, 4756990, 5708388, 7135485, 9513980, 14270970, 28541940]

約数ペア:

[(1, 28541940), (2, 14270970), (3, 9513980), (4, 7135485), (5, 5708388), (6, 4756990), (7, 4077420), (10, 2854194), (12, 2378495), (14, 2038710), (15, 1902796), (20, 1427097), (21, 1359140), (28, 1019355), (30, 951398), (35, 815484), (42, 679570), (60, 475699), (70, 407742), (84, 339785), (105, 271828), (140, 203871), (210, 135914), (420, 67957)]