20900448

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{2341}}^1$

素因数の和:2388

約数の個数: 72

約数和(自身を含む): 61379136

約数和(自身を除く): 40478688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2341, 2976, 4464, 4682, 7023, 8928, 9364, 14046, 18728, 21069, 28092, 37456, 42138, 56184, 72571, 74912, 84276, 112368, 145142, 168552, 217713, 224736, 290284, 337104, 435426, 580568, 653139, 674208, 870852, 1161136, 1306278, 1741704, 2322272, 2612556, 3483408, 5225112, 6966816, 10450224, 20900448]

約数ペア:

[(1, 20900448), (2, 10450224), (3, 6966816), (4, 5225112), (6, 3483408), (8, 2612556), (9, 2322272), (12, 1741704), (16, 1306278), (18, 1161136), (24, 870852), (31, 674208), (32, 653139), (36, 580568), (48, 435426), (62, 337104), (72, 290284), (93, 224736), (96, 217713), (124, 168552), (144, 145142), (186, 112368), (248, 84276), (279, 74912), (288, 72571), (372, 56184), (496, 42138), (558, 37456), (744, 28092), (992, 21069), (1116, 18728), (1488, 14046), (2232, 9364), (2341, 8928), (2976, 7023), (4464, 4682)]