304812280

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 696600000

約数和(自身を除く): 391787720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 199, 257, 298, 398, 514, 596, 745, 796, 995, 1028, 1192, 1285, 1490, 1592, 1990, 2056, 2570, 2980, 3980, 5140, 5960, 7960, 10280, 29651, 38293, 51143, 59302, 76586, 102286, 118604, 148255, 153172, 191465, 204572, 237208, 255715, 296510, 306344, 382930, 409144, 511430, 593020, 765860, 1022860, 1186040, 1531720, 2045720, 7620307, 15240614, 30481228, 38101535, 60962456, 76203070, 152406140, 304812280]

約数ペア:

[(1, 304812280), (2, 152406140), (4, 76203070), (5, 60962456), (8, 38101535), (10, 30481228), (20, 15240614), (40, 7620307), (149, 2045720), (199, 1531720), (257, 1186040), (298, 1022860), (398, 765860), (514, 593020), (596, 511430), (745, 409144), (796, 382930), (995, 306344), (1028, 296510), (1192, 255715), (1285, 237208), (1490, 204572), (1592, 191465), (1990, 153172), (2056, 148255), (2570, 118604), (2980, 102286), (3980, 76586), (5140, 59302), (5960, 51143), (7960, 38293), (10280, 29651)]