309840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1291}}^1$

素因数の和:1307

約数の個数: 40

約数和(自身を含む): 961248

約数和(自身を除く): 651408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1291, 2582, 3873, 5164, 6455, 7746, 10328, 12910, 15492, 19365, 20656, 25820, 30984, 38730, 51640, 61968, 77460, 103280, 154920, 309840]

約数ペア:

[(1, 309840), (2, 154920), (3, 103280), (4, 77460), (5, 61968), (6, 51640), (8, 38730), (10, 30984), (12, 25820), (15, 20656), (16, 19365), (20, 15492), (24, 12910), (30, 10328), (40, 7746), (48, 6455), (60, 5164), (80, 3873), (120, 2582), (240, 1291)]