87272980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1\times {\mathrm{293}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 188035344

約数和(自身を除く): 100762364

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 281, 293, 530, 562, 586, 1060, 1124, 1172, 1405, 1465, 2810, 2930, 5620, 5860, 14893, 15529, 29786, 31058, 59572, 62116, 74465, 77645, 82333, 148930, 155290, 164666, 297860, 310580, 329332, 411665, 823330, 1646660, 4363649, 8727298, 17454596, 21818245, 43636490, 87272980]

約数ペア:

[(1, 87272980), (2, 43636490), (4, 21818245), (5, 17454596), (10, 8727298), (20, 4363649), (53, 1646660), (106, 823330), (212, 411665), (265, 329332), (281, 310580), (293, 297860), (530, 164666), (562, 155290), (586, 148930), (1060, 82333), (1124, 77645), (1172, 74465), (1405, 62116), (1465, 59572), (2810, 31058), (2930, 29786), (5620, 15529), (5860, 14893)]