28715890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 63763200

約数和(自身を除く): 35047310

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 59, 70, 85, 118, 119, 170, 238, 295, 409, 413, 590, 595, 818, 826, 1003, 1190, 2006, 2045, 2065, 2863, 4090, 4130, 5015, 5726, 6953, 7021, 10030, 13906, 14042, 14315, 24131, 28630, 34765, 35105, 48262, 48671, 69530, 70210, 97342, 120655, 168917, 241310, 243355, 337834, 410227, 486710, 820454, 844585, 1689170, 2051135, 2871589, 4102270, 5743178, 14357945, 28715890]

約数ペア:

[(1, 28715890), (2, 14357945), (5, 5743178), (7, 4102270), (10, 2871589), (14, 2051135), (17, 1689170), (34, 844585), (35, 820454), (59, 486710), (70, 410227), (85, 337834), (118, 243355), (119, 241310), (170, 168917), (238, 120655), (295, 97342), (409, 70210), (413, 69530), (590, 48671), (595, 48262), (818, 35105), (826, 34765), (1003, 28630), (1190, 24131), (2006, 14315), (2045, 14042), (2065, 13906), (2863, 10030), (4090, 7021), (4130, 6953), (5015, 5726)]