28625870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 35724850

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 182, 379, 415, 455, 581, 758, 830, 910, 1079, 1162, 1895, 2158, 2653, 2905, 3790, 4927, 5306, 5395, 5810, 7553, 9854, 10790, 13265, 15106, 24635, 26530, 31457, 34489, 37765, 49270, 62914, 68978, 75530, 157285, 172445, 220199, 314570, 344890, 408941, 440398, 817882, 1100995, 2044705, 2201990, 2862587, 4089410, 5725174, 14312935, 28625870]

約数ペア:

[(1, 28625870), (2, 14312935), (5, 5725174), (7, 4089410), (10, 2862587), (13, 2201990), (14, 2044705), (26, 1100995), (35, 817882), (65, 440398), (70, 408941), (83, 344890), (91, 314570), (130, 220199), (166, 172445), (182, 157285), (379, 75530), (415, 68978), (455, 62914), (581, 49270), (758, 37765), (830, 34489), (910, 31457), (1079, 26530), (1162, 24635), (1895, 15106), (2158, 13265), (2653, 10790), (2905, 9854), (3790, 7553), (4927, 5810), (5306, 5395)]