13218730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:583

約数の個数: 48

約数和(自身を含む): 28256040

約数和(自身を除く): 15037310

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 509, 530, 742, 1018, 1855, 2545, 2597, 3563, 3710, 5090, 5194, 7126, 12985, 17815, 24941, 25970, 26977, 35630, 49882, 53954, 124705, 134885, 188839, 249410, 269770, 377678, 944195, 1321873, 1888390, 2643746, 6609365, 13218730]

約数ペア:

[(1, 13218730), (2, 6609365), (5, 2643746), (7, 1888390), (10, 1321873), (14, 944195), (35, 377678), (49, 269770), (53, 249410), (70, 188839), (98, 134885), (106, 124705), (245, 53954), (265, 49882), (371, 35630), (490, 26977), (509, 25970), (530, 24941), (742, 17815), (1018, 12985), (1855, 7126), (2545, 5194), (2597, 5090), (3563, 3710)]