28145004

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 71048880

約数和(自身を除く): 42903876

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 73, 76, 89, 114, 146, 178, 219, 228, 267, 292, 356, 361, 438, 534, 722, 876, 1068, 1083, 1387, 1444, 1691, 2166, 2774, 3382, 4161, 4332, 5073, 5548, 6497, 6764, 8322, 10146, 12994, 16644, 19491, 20292, 25988, 26353, 32129, 38982, 52706, 64258, 77964, 79059, 96387, 105412, 123443, 128516, 158118, 192774, 246886, 316236, 370329, 385548, 493772, 740658, 1481316, 2345417, 4690834, 7036251, 9381668, 14072502, 28145004]

約数ペア:

[(1, 28145004), (2, 14072502), (3, 9381668), (4, 7036251), (6, 4690834), (12, 2345417), (19, 1481316), (38, 740658), (57, 493772), (73, 385548), (76, 370329), (89, 316236), (114, 246886), (146, 192774), (178, 158118), (219, 128516), (228, 123443), (267, 105412), (292, 96387), (356, 79059), (361, 77964), (438, 64258), (534, 52706), (722, 38982), (876, 32129), (1068, 26353), (1083, 25988), (1387, 20292), (1444, 19491), (1691, 16644), (2166, 12994), (2774, 10146), (3382, 8322), (4161, 6764), (4332, 6497), (5073, 5548)]