30955280

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1619}}^1$

素因数の和:1871

約数の個数: 40

約数和(自身を含む): 72316800

約数和(自身を除く): 41361520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1619, 1912, 2390, 3238, 3824, 4780, 6476, 8095, 9560, 12952, 16190, 19120, 25904, 32380, 64760, 129520, 386941, 773882, 1547764, 1934705, 3095528, 3869410, 6191056, 7738820, 15477640, 30955280]

約数ペア:

[(1, 30955280), (2, 15477640), (4, 7738820), (5, 6191056), (8, 3869410), (10, 3095528), (16, 1934705), (20, 1547764), (40, 773882), (80, 386941), (239, 129520), (478, 64760), (956, 32380), (1195, 25904), (1619, 19120), (1912, 16190), (2390, 12952), (3238, 9560), (3824, 8095), (4780, 6476)]