28413420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67651}}^1$

素因数の和:67670

約数の個数: 48

約数和(自身を含む): 90924288

約数和(自身を除く): 62510868

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, 67651, 135302, 202953, 270604, 338255, 405906, 473557, 676510, 811812, 947114, 1014765, 1353020, 1420671, 1894228, 2029530, 2367785, 2841342, 4059060, 4735570, 5682684, 7103355, 9471140, 14206710, 28413420]

約数ペア:

[(1, 28413420), (2, 14206710), (3, 9471140), (4, 7103355), (5, 5682684), (6, 4735570), (7, 4059060), (10, 2841342), (12, 2367785), (14, 2029530), (15, 1894228), (20, 1420671), (21, 1353020), (28, 1014765), (30, 947114), (35, 811812), (42, 676510), (60, 473557), (70, 405906), (84, 338255), (105, 270604), (140, 202953), (210, 135302), (420, 67651)]