20856480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43451}}^1$

素因数の和:43469

約数の個数: 48

約数和(自身を含む): 65699424

約数和(自身を除く): 44842944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43451, 86902, 130353, 173804, 217255, 260706, 347608, 434510, 521412, 651765, 695216, 869020, 1042824, 1303530, 1390432, 1738040, 2085648, 2607060, 3476080, 4171296, 5214120, 6952160, 10428240, 20856480]

約数ペア:

[(1, 20856480), (2, 10428240), (3, 6952160), (4, 5214120), (5, 4171296), (6, 3476080), (8, 2607060), (10, 2085648), (12, 1738040), (15, 1390432), (16, 1303530), (20, 1042824), (24, 869020), (30, 695216), (32, 651765), (40, 521412), (48, 434510), (60, 347608), (80, 260706), (96, 217255), (120, 173804), (160, 130353), (240, 86902), (480, 43451)]