31501340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7127}}^1$

素因数の和:7166

約数の個数: 48

約数和(自身を含む): 75442752

約数和(自身を除く): 43941412

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 7127, 14254, 28508, 35635, 71270, 92651, 121159, 142540, 185302, 242318, 370604, 463255, 484636, 605795, 926510, 1211590, 1575067, 1853020, 2423180, 3150134, 6300268, 7875335, 15750670, 31501340]

約数ペア:

[(1, 31501340), (2, 15750670), (4, 7875335), (5, 6300268), (10, 3150134), (13, 2423180), (17, 1853020), (20, 1575067), (26, 1211590), (34, 926510), (52, 605795), (65, 484636), (68, 463255), (85, 370604), (130, 242318), (170, 185302), (221, 142540), (260, 121159), (340, 92651), (442, 71270), (884, 35635), (1105, 28508), (2210, 14254), (4420, 7127)]