233872990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 472614912

約数和(自身を除く): 238741922

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 131, 155, 262, 310, 403, 443, 655, 806, 886, 1310, 1703, 2015, 2215, 3406, 4030, 4061, 4430, 5759, 8122, 8515, 11518, 13733, 17030, 20305, 27466, 28795, 40610, 52793, 57590, 58033, 68665, 105586, 116066, 137330, 178529, 263965, 290165, 357058, 527930, 580330, 754429, 892645, 1508858, 1785290, 1799023, 3598046, 3772145, 7544290, 8995115, 17990230, 23387299, 46774598, 116936495, 233872990]

約数ペア:

[(1, 233872990), (2, 116936495), (5, 46774598), (10, 23387299), (13, 17990230), (26, 8995115), (31, 7544290), (62, 3772145), (65, 3598046), (130, 1799023), (131, 1785290), (155, 1508858), (262, 892645), (310, 754429), (403, 580330), (443, 527930), (655, 357058), (806, 290165), (886, 263965), (1310, 178529), (1703, 137330), (2015, 116066), (2215, 105586), (3406, 68665), (4030, 58033), (4061, 57590), (4430, 52793), (5759, 40610), (8122, 28795), (8515, 27466), (11518, 20305), (13733, 17030)]