20713950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:450

約数の個数: 72

約数和(自身を含む): 56174976

約数和(自身を除く): 35461026

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 191, 225, 241, 382, 450, 482, 573, 723, 955, 1146, 1205, 1446, 1719, 1910, 2169, 2410, 2865, 3438, 3615, 4338, 4775, 5730, 6025, 7230, 8595, 9550, 10845, 12050, 14325, 17190, 18075, 21690, 28650, 36150, 42975, 46031, 54225, 85950, 92062, 108450, 138093, 230155, 276186, 414279, 460310, 690465, 828558, 1150775, 1380930, 2071395, 2301550, 3452325, 4142790, 6904650, 10356975, 20713950]

約数ペア:

[(1, 20713950), (2, 10356975), (3, 6904650), (5, 4142790), (6, 3452325), (9, 2301550), (10, 2071395), (15, 1380930), (18, 1150775), (25, 828558), (30, 690465), (45, 460310), (50, 414279), (75, 276186), (90, 230155), (150, 138093), (191, 108450), (225, 92062), (241, 85950), (382, 54225), (450, 46031), (482, 42975), (573, 36150), (723, 28650), (955, 21690), (1146, 18075), (1205, 17190), (1446, 14325), (1719, 12050), (1910, 10845), (2169, 9550), (2410, 8595), (2865, 7230), (3438, 6025), (3615, 5730), (4338, 4775)]