123452920

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{8597}}^1$

素因数の和:8967

約数の個数: 32

約数和(自身を含む): 278575200

約数和(自身を除く): 155122280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 8597, 14360, 17194, 34388, 42985, 68776, 85970, 171940, 343880, 3086323, 6172646, 12345292, 15431615, 24690584, 30863230, 61726460, 123452920]

約数ペア:

[(1, 123452920), (2, 61726460), (4, 30863230), (5, 24690584), (8, 15431615), (10, 12345292), (20, 6172646), (40, 3086323), (359, 343880), (718, 171940), (1436, 85970), (1795, 68776), (2872, 42985), (3590, 34388), (7180, 17194), (8597, 14360)]