281569340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{2153}}^1$

素因数の和:2678

約数の個数: 48

約数和(自身を含む): 638342208

約数和(自身を除く): 356772868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 503, 1006, 2012, 2153, 2515, 4306, 5030, 6539, 8612, 10060, 10765, 13078, 21530, 26156, 27989, 32695, 43060, 55978, 65390, 111956, 130780, 139945, 279890, 559780, 1082959, 2165918, 4331836, 5414795, 10829590, 14078467, 21659180, 28156934, 56313868, 70392335, 140784670, 281569340]

約数ペア:

[(1, 281569340), (2, 140784670), (4, 70392335), (5, 56313868), (10, 28156934), (13, 21659180), (20, 14078467), (26, 10829590), (52, 5414795), (65, 4331836), (130, 2165918), (260, 1082959), (503, 559780), (1006, 279890), (2012, 139945), (2153, 130780), (2515, 111956), (4306, 65390), (5030, 55978), (6539, 43060), (8612, 32695), (10060, 27989), (10765, 26156), (13078, 21530)]