18273160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7489}}^1$

素因数の和:7561

約数の個数: 32

約数和(自身を含む): 41794200

約数和(自身を除く): 23521040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7489, 14978, 29956, 37445, 59912, 74890, 149780, 299560, 456829, 913658, 1827316, 2284145, 3654632, 4568290, 9136580, 18273160]

約数ペア:

[(1, 18273160), (2, 9136580), (4, 4568290), (5, 3654632), (8, 2284145), (10, 1827316), (20, 913658), (40, 456829), (61, 299560), (122, 149780), (244, 74890), (305, 59912), (488, 37445), (610, 29956), (1220, 14978), (2440, 7489)]