77890072

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 161274240

約数和(自身を除く): 83384168

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 169, 212, 338, 424, 676, 689, 1087, 1352, 1378, 2174, 2756, 4348, 5512, 8696, 8957, 14131, 17914, 28262, 35828, 56524, 57611, 71656, 113048, 115222, 183703, 230444, 367406, 460888, 734812, 748943, 1469624, 1497886, 2995772, 5991544, 9736259, 19472518, 38945036, 77890072]

約数ペア:

[(1, 77890072), (2, 38945036), (4, 19472518), (8, 9736259), (13, 5991544), (26, 2995772), (52, 1497886), (53, 1469624), (104, 748943), (106, 734812), (169, 460888), (212, 367406), (338, 230444), (424, 183703), (676, 115222), (689, 113048), (1087, 71656), (1352, 57611), (1378, 56524), (2174, 35828), (2756, 28262), (4348, 17914), (5512, 14131), (8696, 8957)]