20123585580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6844757}}^1$

素因数の和:6844783

約数の個数: 72

約数和(自身を含む): 65545402608

約数和(自身を除く): 45421817028

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, 6844757, 13689514, 20534271, 27379028, 34223785, 41068542, 47913299, 68447570, 82137084, 95826598, 102671355, 136895140, 143739897, 191653196, 205342710, 239566495, 287479794, 335393093, 410685420, 479132990, 574959588, 670786186, 718699485, 958265980, 1006179279, 1341572372, 1437398970, 1676965465, 2012358558, 2874797940, 3353930930, 4024717116, 5030896395, 6707861860, 10061792790, 20123585580]

約数ペア:

[(1, 20123585580), (2, 10061792790), (3, 6707861860), (4, 5030896395), (5, 4024717116), (6, 3353930930), (7, 2874797940), (10, 2012358558), (12, 1676965465), (14, 1437398970), (15, 1341572372), (20, 1006179279), (21, 958265980), (28, 718699485), (30, 670786186), (35, 574959588), (42, 479132990), (49, 410685420), (60, 335393093), (70, 287479794), (84, 239566495), (98, 205342710), (105, 191653196), (140, 143739897), (147, 136895140), (196, 102671355), (210, 95826598), (245, 82137084), (294, 68447570), (420, 47913299), (490, 41068542), (588, 34223785), (735, 27379028), (980, 20534271), (1470, 13689514), (2940, 6844757)]