28173860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9851}}^1$

素因数の和:9884

約数の個数: 48

約数和(自身を含む): 69515712

約数和(自身を除く): 41341852

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 9851, 19702, 39404, 49255, 98510, 108361, 128063, 197020, 216722, 256126, 433444, 512252, 541805, 640315, 1083610, 1280630, 1408693, 2167220, 2561260, 2817386, 5634772, 7043465, 14086930, 28173860]

約数ペア:

[(1, 28173860), (2, 14086930), (4, 7043465), (5, 5634772), (10, 2817386), (11, 2561260), (13, 2167220), (20, 1408693), (22, 1280630), (26, 1083610), (44, 640315), (52, 541805), (55, 512252), (65, 433444), (110, 256126), (130, 216722), (143, 197020), (220, 128063), (260, 108361), (286, 98510), (572, 49255), (715, 39404), (1430, 19702), (2860, 9851)]