1285486540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1\times {\mathrm{4507}}^1$

素因数の和:5626

約数の個数: 48

約数和(自身を含む): 2910472992

約数和(自身を除く): 1624986452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1097, 2194, 4388, 4507, 5485, 9014, 10970, 14261, 18028, 21940, 22535, 28522, 45070, 57044, 58591, 71305, 90140, 117182, 142610, 234364, 285220, 292955, 585910, 1171820, 4944179, 9888358, 19776716, 24720895, 49441790, 64274327, 98883580, 128548654, 257097308, 321371635, 642743270, 1285486540]

約数ペア:

[(1, 1285486540), (2, 642743270), (4, 321371635), (5, 257097308), (10, 128548654), (13, 98883580), (20, 64274327), (26, 49441790), (52, 24720895), (65, 19776716), (130, 9888358), (260, 4944179), (1097, 1171820), (2194, 585910), (4388, 292955), (4507, 285220), (5485, 234364), (9014, 142610), (10970, 117182), (14261, 90140), (18028, 71305), (21940, 58591), (22535, 57044), (28522, 45070)]