31031920

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6359}}^1$

素因数の和:6433

約数の個数: 40

約数和(自身を含む): 73343520

約数和(自身を除く): 42311600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 6359, 12718, 25436, 31795, 50872, 63590, 101744, 127180, 254360, 387899, 508720, 775798, 1551596, 1939495, 3103192, 3878990, 6206384, 7757980, 15515960, 31031920]

約数ペア:

[(1, 31031920), (2, 15515960), (4, 7757980), (5, 6206384), (8, 3878990), (10, 3103192), (16, 1939495), (20, 1551596), (40, 775798), (61, 508720), (80, 387899), (122, 254360), (244, 127180), (305, 101744), (488, 63590), (610, 50872), (976, 31795), (1220, 25436), (2440, 12718), (4880, 6359)]