1278658519180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{56728417}}^1$

素因数の和:56728463

約数の個数: 72

約数和(自身を含む): 3259387984608

約数和(自身を除く): 1980729465428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 56728417, 113456834, 226913668, 283642085, 397098919, 567284170, 794197838, 1134568340, 1304753591, 1588395676, 1985494595, 2609507182, 2779692433, 3970989190, 5219014364, 5559384866, 6523767955, 7941978380, 9133275137, 11118769732, 13047535910, 13898462165, 18266550274, 26095071820, 27796924330, 36533100548, 45666375685, 55593848660, 63932925959, 91332751370, 127865851918, 182665502740, 255731703836, 319664629795, 639329259590, 1278658519180]

約数ペア:

[(1, 1278658519180), (2, 639329259590), (4, 319664629795), (5, 255731703836), (7, 182665502740), (10, 127865851918), (14, 91332751370), (20, 63932925959), (23, 55593848660), (28, 45666375685), (35, 36533100548), (46, 27796924330), (49, 26095071820), (70, 18266550274), (92, 13898462165), (98, 13047535910), (115, 11118769732), (140, 9133275137), (161, 7941978380), (196, 6523767955), (230, 5559384866), (245, 5219014364), (322, 3970989190), (460, 2779692433), (490, 2609507182), (644, 1985494595), (805, 1588395676), (980, 1304753591), (1127, 1134568340), (1610, 794197838), (2254, 567284170), (3220, 397098919), (4508, 283642085), (5635, 226913668), (11270, 113456834), (22540, 56728417)]