20920160

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2467}}^1$

素因数の和:2535

約数の個数: 48

約数和(自身を含む): 50376816

約数和(自身を除く): 29456656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2467, 4240, 4934, 8480, 9868, 12335, 19736, 24670, 39472, 49340, 78944, 98680, 130751, 197360, 261502, 394720, 523004, 653755, 1046008, 1307510, 2092016, 2615020, 4184032, 5230040, 10460080, 20920160]

約数ペア:

[(1, 20920160), (2, 10460080), (4, 5230040), (5, 4184032), (8, 2615020), (10, 2092016), (16, 1307510), (20, 1046008), (32, 653755), (40, 523004), (53, 394720), (80, 261502), (106, 197360), (160, 130751), (212, 98680), (265, 78944), (424, 49340), (530, 39472), (848, 24670), (1060, 19736), (1696, 12335), (2120, 9868), (2467, 8480), (4240, 4934)]