21356621205520

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{953}}^1\times {\mathrm{1855123}}^1$

素因数の和:1856240

約数の個数: 80

約数和(自身を含む): 50035454704512

約数和(自身を除く): 28678833498992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 953, 1208, 1510, 1906, 2416, 3020, 3812, 4765, 6040, 7624, 9530, 12080, 15248, 19060, 38120, 76240, 143903, 287806, 575612, 719515, 1151224, 1439030, 1855123, 2302448, 2878060, 3710246, 5756120, 7420492, 9275615, 11512240, 14840984, 18551230, 29681968, 37102460, 74204920, 148409840, 280123573, 560247146, 1120494292, 1400617865, 1767932219, 2240988584, 2801235730, 3535864438, 4481977168, 5602471460, 7071728876, 8839661095, 11204942920, 14143457752, 17679322190, 22409885840, 28286915504, 35358644380, 70717288760, 141434577520, 266957765069, 533915530138, 1067831060276, 1334788825345, 2135662120552, 2669577650690, 4271324241104, 5339155301380, 10678310602760, 21356621205520]

約数ペア:

[(1, 21356621205520), (2, 10678310602760), (4, 5339155301380), (5, 4271324241104), (8, 2669577650690), (10, 2135662120552), (16, 1334788825345), (20, 1067831060276), (40, 533915530138), (80, 266957765069), (151, 141434577520), (302, 70717288760), (604, 35358644380), (755, 28286915504), (953, 22409885840), (1208, 17679322190), (1510, 14143457752), (1906, 11204942920), (2416, 8839661095), (3020, 7071728876), (3812, 5602471460), (4765, 4481977168), (6040, 3535864438), (7624, 2801235730), (9530, 2240988584), (12080, 1767932219), (15248, 1400617865), (19060, 1120494292), (38120, 560247146), (76240, 280123573), (143903, 148409840), (287806, 74204920), (575612, 37102460), (719515, 29681968), (1151224, 18551230), (1439030, 14840984), (1855123, 11512240), (2302448, 9275615), (2878060, 7420492), (3710246, 5756120)]