81366075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2719}}^1$

素因数の和:2761

約数の個数: 72

約数和(自身を含む): 175385600

約数和(自身を除く): 94019525

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 171, 175, 225, 285, 315, 399, 475, 525, 665, 855, 1197, 1425, 1575, 1995, 2719, 3325, 4275, 5985, 8157, 9975, 13595, 19033, 24471, 29925, 40785, 51661, 57099, 67975, 95165, 122355, 154983, 171297, 203925, 258305, 285495, 361627, 464949, 475825, 611775, 774915, 856485, 1084881, 1291525, 1427475, 1808135, 2324745, 3254643, 3874575, 4282425, 5424405, 9040675, 11623725, 16273215, 27122025, 81366075]

約数ペア:

[(1, 81366075), (3, 27122025), (5, 16273215), (7, 11623725), (9, 9040675), (15, 5424405), (19, 4282425), (21, 3874575), (25, 3254643), (35, 2324745), (45, 1808135), (57, 1427475), (63, 1291525), (75, 1084881), (95, 856485), (105, 774915), (133, 611775), (171, 475825), (175, 464949), (225, 361627), (285, 285495), (315, 258305), (399, 203925), (475, 171297), (525, 154983), (665, 122355), (855, 95165), (1197, 67975), (1425, 57099), (1575, 51661), (1995, 40785), (2719, 29925), (3325, 24471), (4275, 19033), (5985, 13595), (8157, 9975)]