20105969915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{479}}^1\times {\mathrm{953}}^1$

素因数の和:1843

約数の個数: 32

約数和(自身を含む): 25321144320

約数和(自身を除く): 5215174405

約数列:

[1, 5, 23, 115, 383, 479, 953, 1915, 2395, 4765, 8809, 11017, 21919, 44045, 55085, 109595, 183457, 364999, 456487, 917285, 1824995, 2282435, 4219511, 8394977, 10499201, 21097555, 41974885, 52496005, 174834521, 874172605, 4021193983, 20105969915]

約数ペア:

[(1, 20105969915), (5, 4021193983), (23, 874172605), (115, 174834521), (383, 52496005), (479, 41974885), (953, 21097555), (1915, 10499201), (2395, 8394977), (4765, 4219511), (8809, 2282435), (11017, 1824995), (21919, 917285), (44045, 456487), (55085, 364999), (109595, 183457)]