20528235

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 45372096

約数和(自身を除く): 24843861

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 81, 91, 105, 117, 135, 189, 195, 273, 315, 351, 405, 455, 557, 567, 585, 819, 945, 1053, 1365, 1671, 1755, 2457, 2785, 2835, 3899, 4095, 5013, 5265, 7241, 7371, 8355, 11697, 12285, 15039, 19495, 21723, 25065, 35091, 36205, 36855, 45117, 50687, 58485, 65169, 75195, 105273, 108615, 152061, 175455, 195507, 225585, 253435, 315819, 325845, 456183, 526365, 586521, 760305, 977535, 1368549, 1579095, 2280915, 2932605, 4105647, 6842745, 20528235]

約数ペア:

[(1, 20528235), (3, 6842745), (5, 4105647), (7, 2932605), (9, 2280915), (13, 1579095), (15, 1368549), (21, 977535), (27, 760305), (35, 586521), (39, 526365), (45, 456183), (63, 325845), (65, 315819), (81, 253435), (91, 225585), (105, 195507), (117, 175455), (135, 152061), (189, 108615), (195, 105273), (273, 75195), (315, 65169), (351, 58485), (405, 50687), (455, 45117), (557, 36855), (567, 36205), (585, 35091), (819, 25065), (945, 21723), (1053, 19495), (1365, 15039), (1671, 12285), (1755, 11697), (2457, 8355), (2785, 7371), (2835, 7241), (3899, 5265), (4095, 5013)]