21521760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3449}}^1$

素因数の和:3480

約数の個数: 96

約数和(自身を含む): 73029600

約数和(自身を除く): 51507840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3449, 6240, 6898, 10347, 13796, 17245, 20694, 27592, 34490, 41388, 44837, 51735, 55184, 68980, 82776, 89674, 103470, 110368, 134511, 137960, 165552, 179348, 206940, 224185, 269022, 275920, 331104, 358696, 413880, 448370, 538044, 551840, 672555, 717392, 827760, 896740, 1076088, 1345110, 1434784, 1655520, 1793480, 2152176, 2690220, 3586960, 4304352, 5380440, 7173920, 10760880, 21521760]

約数ペア:

[(1, 21521760), (2, 10760880), (3, 7173920), (4, 5380440), (5, 4304352), (6, 3586960), (8, 2690220), (10, 2152176), (12, 1793480), (13, 1655520), (15, 1434784), (16, 1345110), (20, 1076088), (24, 896740), (26, 827760), (30, 717392), (32, 672555), (39, 551840), (40, 538044), (48, 448370), (52, 413880), (60, 358696), (65, 331104), (78, 275920), (80, 269022), (96, 224185), (104, 206940), (120, 179348), (130, 165552), (156, 137960), (160, 134511), (195, 110368), (208, 103470), (240, 89674), (260, 82776), (312, 68980), (390, 55184), (416, 51735), (480, 44837), (520, 41388), (624, 34490), (780, 27592), (1040, 20694), (1248, 17245), (1560, 13796), (2080, 10347), (3120, 6898), (3449, 6240)]