28979825

素因数分解:

$5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 42895692

約数和(自身を除く): 13915867

約数列:

[1, 5, 7, 25, 35, 41, 49, 175, 205, 245, 287, 577, 1025, 1225, 1435, 2009, 2885, 4039, 7175, 10045, 14425, 20195, 23657, 28273, 50225, 100975, 118285, 141365, 165599, 591425, 706825, 827995, 1159193, 4139975, 5795965, 28979825]

約数ペア:

[(1, 28979825), (5, 5795965), (7, 4139975), (25, 1159193), (35, 827995), (41, 706825), (49, 591425), (175, 165599), (205, 141365), (245, 118285), (287, 100975), (577, 50225), (1025, 28273), (1225, 23657), (1435, 20195), (2009, 14425), (2885, 10045), (4039, 7175)]