21296250

素因数分解:

$2^1\times 3^3\times 5^4\times {\mathrm{631}}^1$

素因数の和:662

約数の個数: 80

約数和(自身を含む): 59231040

約数和(自身を除く): 37934790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 125, 135, 150, 225, 250, 270, 375, 450, 625, 631, 675, 750, 1125, 1250, 1262, 1350, 1875, 1893, 2250, 3155, 3375, 3750, 3786, 5625, 5679, 6310, 6750, 9465, 11250, 11358, 15775, 16875, 17037, 18930, 28395, 31550, 33750, 34074, 47325, 56790, 78875, 85185, 94650, 141975, 157750, 170370, 236625, 283950, 394375, 425925, 473250, 709875, 788750, 851850, 1183125, 1419750, 2129625, 2366250, 3549375, 4259250, 7098750, 10648125, 21296250]

約数ペア:

[(1, 21296250), (2, 10648125), (3, 7098750), (5, 4259250), (6, 3549375), (9, 2366250), (10, 2129625), (15, 1419750), (18, 1183125), (25, 851850), (27, 788750), (30, 709875), (45, 473250), (50, 425925), (54, 394375), (75, 283950), (90, 236625), (125, 170370), (135, 157750), (150, 141975), (225, 94650), (250, 85185), (270, 78875), (375, 56790), (450, 47325), (625, 34074), (631, 33750), (675, 31550), (750, 28395), (1125, 18930), (1250, 17037), (1262, 16875), (1350, 15775), (1875, 11358), (1893, 11250), (2250, 9465), (3155, 6750), (3375, 6310), (3750, 5679), (3786, 5625)]