9938120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4073}}^1$

素因数の和:4145

約数の個数: 32

約数和(自身を含む): 22732920

約数和(自身を除く): 12794800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 4073, 8146, 16292, 20365, 32584, 40730, 81460, 162920, 248453, 496906, 993812, 1242265, 1987624, 2484530, 4969060, 9938120]

約数ペア:

[(1, 9938120), (2, 4969060), (4, 2484530), (5, 1987624), (8, 1242265), (10, 993812), (20, 496906), (40, 248453), (61, 162920), (122, 81460), (244, 40730), (305, 32584), (488, 20365), (610, 16292), (1220, 8146), (2440, 4073)]