1639842320

素因数分解:

$2^4\times 5^1\times {\mathrm{2381}}^1\times {\mathrm{8609}}^1$

素因数の和:11003

約数の個数: 40

約数和(自身を含む): 3814677720

約数和(自身を除く): 2174835400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2381, 4762, 8609, 9524, 11905, 17218, 19048, 23810, 34436, 38096, 43045, 47620, 68872, 86090, 95240, 137744, 172180, 190480, 344360, 688720, 20498029, 40996058, 81992116, 102490145, 163984232, 204980290, 327968464, 409960580, 819921160, 1639842320]

約数ペア:

[(1, 1639842320), (2, 819921160), (4, 409960580), (5, 327968464), (8, 204980290), (10, 163984232), (16, 102490145), (20, 81992116), (40, 40996058), (80, 20498029), (2381, 688720), (4762, 344360), (8609, 190480), (9524, 172180), (11905, 137744), (17218, 95240), (19048, 86090), (23810, 68872), (34436, 47620), (38096, 43045)]