261576640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{277}}^1$

素因数の和:534

約数の個数: 112

約数和(自身を含む): 676180512

約数和(自身を除く): 414603872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 227, 260, 277, 320, 416, 454, 520, 554, 832, 908, 1040, 1108, 1135, 1385, 1816, 2080, 2216, 2270, 2770, 2951, 3601, 3632, 4160, 4432, 4540, 5540, 5902, 7202, 7264, 8864, 9080, 11080, 11804, 14404, 14528, 14755, 17728, 18005, 18160, 22160, 23608, 28808, 29510, 36010, 36320, 44320, 47216, 57616, 59020, 62879, 72020, 72640, 88640, 94432, 115232, 118040, 125758, 144040, 188864, 230464, 236080, 251516, 288080, 314395, 472160, 503032, 576160, 628790, 817427, 944320, 1006064, 1152320, 1257580, 1634854, 2012128, 2515160, 3269708, 4024256, 4087135, 5030320, 6539416, 8174270, 10060640, 13078832, 16348540, 20121280, 26157664, 32697080, 52315328, 65394160, 130788320, 261576640]

約数ペア:

[(1, 261576640), (2, 130788320), (4, 65394160), (5, 52315328), (8, 32697080), (10, 26157664), (13, 20121280), (16, 16348540), (20, 13078832), (26, 10060640), (32, 8174270), (40, 6539416), (52, 5030320), (64, 4087135), (65, 4024256), (80, 3269708), (104, 2515160), (130, 2012128), (160, 1634854), (208, 1257580), (227, 1152320), (260, 1006064), (277, 944320), (320, 817427), (416, 628790), (454, 576160), (520, 503032), (554, 472160), (832, 314395), (908, 288080), (1040, 251516), (1108, 236080), (1135, 230464), (1385, 188864), (1816, 144040), (2080, 125758), (2216, 118040), (2270, 115232), (2770, 94432), (2951, 88640), (3601, 72640), (3632, 72020), (4160, 62879), (4432, 59020), (4540, 57616), (5540, 47216), (5902, 44320), (7202, 36320), (7264, 36010), (8864, 29510), (9080, 28808), (11080, 23608), (11804, 22160), (14404, 18160), (14528, 18005), (14755, 17728)]