20088225

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 39203840

約数和(自身を除く): 19115615

約数列:

[1, 3, 5, 9, 15, 19, 25, 37, 45, 57, 75, 95, 111, 127, 171, 185, 225, 285, 333, 381, 475, 555, 635, 703, 855, 925, 1143, 1425, 1665, 1905, 2109, 2413, 2775, 3175, 3515, 4275, 4699, 5715, 6327, 7239, 8325, 9525, 10545, 12065, 14097, 17575, 21717, 23495, 28575, 31635, 36195, 42291, 52725, 60325, 70485, 89281, 108585, 117475, 158175, 180975, 211455, 267843, 352425, 446405, 542925, 803529, 1057275, 1339215, 2232025, 4017645, 6696075, 20088225]

約数ペア:

[(1, 20088225), (3, 6696075), (5, 4017645), (9, 2232025), (15, 1339215), (19, 1057275), (25, 803529), (37, 542925), (45, 446405), (57, 352425), (75, 267843), (95, 211455), (111, 180975), (127, 158175), (171, 117475), (185, 108585), (225, 89281), (285, 70485), (333, 60325), (381, 52725), (475, 42291), (555, 36195), (635, 31635), (703, 28575), (855, 23495), (925, 21717), (1143, 17575), (1425, 14097), (1665, 12065), (1905, 10545), (2109, 9525), (2413, 8325), (2775, 7239), (3175, 6327), (3515, 5715), (4275, 4699)]