890737160

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1302

約数の個数: 64

約数和(自身を含む): 2044785600

約数和(自身を除く): 1154048440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 571, 590, 661, 1142, 1180, 1322, 2284, 2360, 2644, 2855, 3305, 4568, 5288, 5710, 6610, 11420, 13220, 22840, 26440, 33689, 38999, 67378, 77998, 134756, 155996, 168445, 194995, 269512, 311992, 336890, 377431, 389990, 673780, 754862, 779980, 1347560, 1509724, 1559960, 1887155, 3019448, 3774310, 7548620, 15097240, 22268429, 44536858, 89073716, 111342145, 178147432, 222684290, 445368580, 890737160]

約数ペア:

[(1, 890737160), (2, 445368580), (4, 222684290), (5, 178147432), (8, 111342145), (10, 89073716), (20, 44536858), (40, 22268429), (59, 15097240), (118, 7548620), (236, 3774310), (295, 3019448), (472, 1887155), (571, 1559960), (590, 1509724), (661, 1347560), (1142, 779980), (1180, 754862), (1322, 673780), (2284, 389990), (2360, 377431), (2644, 336890), (2855, 311992), (3305, 269512), (4568, 194995), (5288, 168445), (5710, 155996), (6610, 134756), (11420, 77998), (13220, 67378), (22840, 38999), (26440, 33689)]