21940080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 68700960

約数和(自身を除く): 46760880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 113, 120, 226, 240, 339, 452, 565, 678, 809, 904, 1130, 1356, 1618, 1695, 1808, 2260, 2427, 2712, 3236, 3390, 4045, 4520, 4854, 5424, 6472, 6780, 8090, 9040, 9708, 12135, 12944, 13560, 16180, 19416, 24270, 27120, 32360, 38832, 48540, 64720, 91417, 97080, 182834, 194160, 274251, 365668, 457085, 548502, 731336, 914170, 1097004, 1371255, 1462672, 1828340, 2194008, 2742510, 3656680, 4388016, 5485020, 7313360, 10970040, 21940080]

約数ペア:

[(1, 21940080), (2, 10970040), (3, 7313360), (4, 5485020), (5, 4388016), (6, 3656680), (8, 2742510), (10, 2194008), (12, 1828340), (15, 1462672), (16, 1371255), (20, 1097004), (24, 914170), (30, 731336), (40, 548502), (48, 457085), (60, 365668), (80, 274251), (113, 194160), (120, 182834), (226, 97080), (240, 91417), (339, 64720), (452, 48540), (565, 38832), (678, 32360), (809, 27120), (904, 24270), (1130, 19416), (1356, 16180), (1618, 13560), (1695, 12944), (1808, 12135), (2260, 9708), (2427, 9040), (2712, 8090), (3236, 6780), (3390, 6472), (4045, 5424), (4520, 4854)]