261783540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{2161}}^1$

素因数の和:2849

約数の個数: 72

約数和(自身を含む): 795624648

約数和(自身を除く): 533841108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 673, 1346, 2019, 2161, 2692, 3365, 4038, 4322, 6057, 6483, 6730, 8076, 8644, 10095, 10805, 12114, 12966, 13460, 19449, 20190, 21610, 24228, 25932, 30285, 32415, 38898, 40380, 43220, 60570, 64830, 77796, 97245, 121140, 129660, 194490, 388980, 1454353, 2908706, 4363059, 5817412, 7271765, 8726118, 13089177, 14543530, 17452236, 21815295, 26178354, 29087060, 43630590, 52356708, 65445885, 87261180, 130891770, 261783540]

約数ペア:

[(1, 261783540), (2, 130891770), (3, 87261180), (4, 65445885), (5, 52356708), (6, 43630590), (9, 29087060), (10, 26178354), (12, 21815295), (15, 17452236), (18, 14543530), (20, 13089177), (30, 8726118), (36, 7271765), (45, 5817412), (60, 4363059), (90, 2908706), (180, 1454353), (673, 388980), (1346, 194490), (2019, 129660), (2161, 121140), (2692, 97245), (3365, 77796), (4038, 64830), (4322, 60570), (6057, 43220), (6483, 40380), (6730, 38898), (8076, 32415), (8644, 30285), (10095, 25932), (10805, 24228), (12114, 21610), (12966, 20190), (13460, 19449)]