18972675

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 36386064

約数和(自身を除く): 17413389

約数列:

[1, 3, 5, 9, 15, 25, 37, 43, 45, 53, 75, 111, 129, 159, 185, 215, 225, 265, 333, 387, 477, 555, 645, 795, 925, 1075, 1325, 1591, 1665, 1935, 1961, 2279, 2385, 2775, 3225, 3975, 4773, 5883, 6837, 7955, 8325, 9675, 9805, 11395, 11925, 14319, 17649, 20511, 23865, 29415, 34185, 39775, 49025, 56975, 71595, 84323, 88245, 102555, 119325, 147075, 170925, 252969, 357975, 421615, 441225, 512775, 758907, 1264845, 2108075, 3794535, 6324225, 18972675]

約数ペア:

[(1, 18972675), (3, 6324225), (5, 3794535), (9, 2108075), (15, 1264845), (25, 758907), (37, 512775), (43, 441225), (45, 421615), (53, 357975), (75, 252969), (111, 170925), (129, 147075), (159, 119325), (185, 102555), (215, 88245), (225, 84323), (265, 71595), (333, 56975), (387, 49025), (477, 39775), (555, 34185), (645, 29415), (795, 23865), (925, 20511), (1075, 17649), (1325, 14319), (1591, 11925), (1665, 11395), (1935, 9805), (1961, 9675), (2279, 8325), (2385, 7955), (2775, 6837), (3225, 5883), (3975, 4773)]