665654320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1931}}^1$

素因数の和:2114

約数の個数: 80

約数和(自身を含む): 1609896960

約数和(自身を除く): 944242640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 248, 278, 310, 496, 556, 620, 695, 1112, 1240, 1390, 1931, 2224, 2480, 2780, 3862, 4309, 5560, 7724, 8618, 9655, 11120, 15448, 17236, 19310, 21545, 30896, 34472, 38620, 43090, 59861, 68944, 77240, 86180, 119722, 154480, 172360, 239444, 268409, 299305, 344720, 478888, 536818, 598610, 957776, 1073636, 1197220, 1342045, 2147272, 2394440, 2684090, 4294544, 4788880, 5368180, 8320679, 10736360, 16641358, 21472720, 33282716, 41603395, 66565432, 83206790, 133130864, 166413580, 332827160, 665654320]

約数ペア:

[(1, 665654320), (2, 332827160), (4, 166413580), (5, 133130864), (8, 83206790), (10, 66565432), (16, 41603395), (20, 33282716), (31, 21472720), (40, 16641358), (62, 10736360), (80, 8320679), (124, 5368180), (139, 4788880), (155, 4294544), (248, 2684090), (278, 2394440), (310, 2147272), (496, 1342045), (556, 1197220), (620, 1073636), (695, 957776), (1112, 598610), (1240, 536818), (1390, 478888), (1931, 344720), (2224, 299305), (2480, 268409), (2780, 239444), (3862, 172360), (4309, 154480), (5560, 119722), (7724, 86180), (8618, 77240), (9655, 68944), (11120, 59861), (15448, 43090), (17236, 38620), (19310, 34472), (21545, 30896)]