17871020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 22045780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 359, 380, 524, 655, 718, 1310, 1436, 1795, 2489, 2620, 3590, 4978, 6821, 7180, 9956, 12445, 13642, 24890, 27284, 34105, 47029, 49780, 68210, 94058, 136420, 188116, 235145, 470290, 893551, 940580, 1787102, 3574204, 4467755, 8935510, 17871020]

約数ペア:

[(1, 17871020), (2, 8935510), (4, 4467755), (5, 3574204), (10, 1787102), (19, 940580), (20, 893551), (38, 470290), (76, 235145), (95, 188116), (131, 136420), (190, 94058), (262, 68210), (359, 49780), (380, 47029), (524, 34105), (655, 27284), (718, 24890), (1310, 13642), (1436, 12445), (1795, 9956), (2489, 7180), (2620, 6821), (3590, 4978)]