490231430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1461

約数の個数: 64

約数和(自身を含む): 1000194048

約数和(自身を除く): 509962618

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 127, 130, 230, 254, 299, 598, 635, 1270, 1291, 1495, 1651, 2582, 2921, 2990, 3302, 5842, 6455, 8255, 12910, 14605, 16510, 16783, 29210, 29693, 33566, 37973, 59386, 75946, 83915, 148465, 163957, 167830, 189865, 296930, 327914, 379730, 386009, 772018, 819785, 1639570, 1930045, 2131441, 3771011, 3860090, 4262882, 7542022, 10657205, 18855055, 21314410, 37710110, 49023143, 98046286, 245115715, 490231430]

約数ペア:

[(1, 490231430), (2, 245115715), (5, 98046286), (10, 49023143), (13, 37710110), (23, 21314410), (26, 18855055), (46, 10657205), (65, 7542022), (115, 4262882), (127, 3860090), (130, 3771011), (230, 2131441), (254, 1930045), (299, 1639570), (598, 819785), (635, 772018), (1270, 386009), (1291, 379730), (1495, 327914), (1651, 296930), (2582, 189865), (2921, 167830), (2990, 163957), (3302, 148465), (5842, 83915), (6455, 75946), (8255, 59386), (12910, 37973), (14605, 33566), (16510, 29693), (16783, 29210)]