79019540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 169827840

約数和(自身を除く): 90808300

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 356, 412, 431, 445, 515, 862, 890, 1030, 1724, 1780, 2060, 2155, 4310, 8620, 9167, 18334, 36668, 38359, 44393, 45835, 76718, 88786, 91670, 153436, 177572, 183340, 191795, 221965, 383590, 443930, 767180, 887860, 3950977, 7901954, 15803908, 19754885, 39509770, 79019540]

約数ペア:

[(1, 79019540), (2, 39509770), (4, 19754885), (5, 15803908), (10, 7901954), (20, 3950977), (89, 887860), (103, 767180), (178, 443930), (206, 383590), (356, 221965), (412, 191795), (431, 183340), (445, 177572), (515, 153436), (862, 91670), (890, 88786), (1030, 76718), (1724, 45835), (1780, 44393), (2060, 38359), (2155, 36668), (4310, 18334), (8620, 9167)]