39851540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 86486400

約数和(自身を除く): 46634860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 311, 430, 596, 622, 745, 860, 1244, 1490, 1555, 2980, 3110, 6220, 6407, 12814, 13373, 25628, 26746, 32035, 46339, 53492, 64070, 66865, 92678, 128140, 133730, 185356, 231695, 267460, 463390, 926780, 1992577, 3985154, 7970308, 9962885, 19925770, 39851540]

約数ペア:

[(1, 39851540), (2, 19925770), (4, 9962885), (5, 7970308), (10, 3985154), (20, 1992577), (43, 926780), (86, 463390), (149, 267460), (172, 231695), (215, 185356), (298, 133730), (311, 128140), (430, 92678), (596, 66865), (622, 64070), (745, 53492), (860, 46339), (1244, 32035), (1490, 26746), (1555, 25628), (2980, 13373), (3110, 12814), (6220, 6407)]