20117475

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 42131232

約数和(自身を除く): 22013757

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 53, 63, 75, 105, 159, 175, 225, 241, 265, 315, 371, 477, 525, 723, 795, 1113, 1205, 1325, 1575, 1687, 1855, 2169, 2385, 3339, 3615, 3975, 5061, 5565, 6025, 8435, 9275, 10845, 11925, 12773, 15183, 16695, 18075, 25305, 27825, 38319, 42175, 54225, 63865, 75915, 83475, 89411, 114957, 126525, 191595, 268233, 319325, 379575, 447055, 574785, 804699, 957975, 1341165, 2235275, 2873925, 4023495, 6705825, 20117475]

約数ペア:

[(1, 20117475), (3, 6705825), (5, 4023495), (7, 2873925), (9, 2235275), (15, 1341165), (21, 957975), (25, 804699), (35, 574785), (45, 447055), (53, 379575), (63, 319325), (75, 268233), (105, 191595), (159, 126525), (175, 114957), (225, 89411), (241, 83475), (265, 75915), (315, 63865), (371, 54225), (477, 42175), (525, 38319), (723, 27825), (795, 25305), (1113, 18075), (1205, 16695), (1325, 15183), (1575, 12773), (1687, 11925), (1855, 10845), (2169, 9275), (2385, 8435), (3339, 6025), (3615, 5565), (3975, 5061)]