28402790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5081}}^1$

素因数の和:5144

約数の個数: 32

約数和(自身を含む): 56349216

約数和(自身を除く): 27946426

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5081, 5590, 10162, 25405, 50810, 66053, 132106, 218483, 330265, 436966, 660530, 1092415, 2184830, 2840279, 5680558, 14201395, 28402790]

約数ペア:

[(1, 28402790), (2, 14201395), (5, 5680558), (10, 2840279), (13, 2184830), (26, 1092415), (43, 660530), (65, 436966), (86, 330265), (130, 218483), (215, 132106), (430, 66053), (559, 50810), (1118, 25405), (2795, 10162), (5081, 5590)]