31250128

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^3\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 75550720

約数和(自身を除く): 44300592

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 127, 169, 182, 208, 254, 338, 364, 508, 676, 728, 889, 1016, 1183, 1352, 1456, 1651, 1778, 2032, 2197, 2366, 2704, 3302, 3556, 4394, 4732, 6604, 7112, 8788, 9464, 11557, 13208, 14224, 15379, 17576, 18928, 21463, 23114, 26416, 30758, 35152, 42926, 46228, 61516, 85852, 92456, 123032, 150241, 171704, 184912, 246064, 279019, 300482, 343408, 558038, 600964, 1116076, 1201928, 1953133, 2232152, 2403856, 3906266, 4464304, 7812532, 15625064, 31250128]

約数ペア:

[(1, 31250128), (2, 15625064), (4, 7812532), (7, 4464304), (8, 3906266), (13, 2403856), (14, 2232152), (16, 1953133), (26, 1201928), (28, 1116076), (52, 600964), (56, 558038), (91, 343408), (104, 300482), (112, 279019), (127, 246064), (169, 184912), (182, 171704), (208, 150241), (254, 123032), (338, 92456), (364, 85852), (508, 61516), (676, 46228), (728, 42926), (889, 35152), (1016, 30758), (1183, 26416), (1352, 23114), (1456, 21463), (1651, 18928), (1778, 17576), (2032, 15379), (2197, 14224), (2366, 13208), (2704, 11557), (3302, 9464), (3556, 8788), (4394, 7112), (4732, 6604)]