31122325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 45372096

約数和(自身を除く): 14249771

約数列:

[1, 5, 13, 17, 25, 43, 65, 85, 131, 215, 221, 325, 425, 559, 655, 731, 1075, 1105, 1703, 2227, 2795, 3275, 3655, 5525, 5633, 8515, 9503, 11135, 13975, 18275, 28165, 28951, 42575, 47515, 55675, 73229, 95761, 140825, 144755, 237575, 366145, 478805, 723775, 1244893, 1830725, 2394025, 6224465, 31122325]

約数ペア:

[(1, 31122325), (5, 6224465), (13, 2394025), (17, 1830725), (25, 1244893), (43, 723775), (65, 478805), (85, 366145), (131, 237575), (215, 144755), (221, 140825), (325, 95761), (425, 73229), (559, 55675), (655, 47515), (731, 42575), (1075, 28951), (1105, 28165), (1703, 18275), (2227, 13975), (2795, 11135), (3275, 9503), (3655, 8515), (5525, 5633)]