31570780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{331}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 70277760

約数和(自身を除く): 38706980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 331, 380, 502, 662, 1004, 1255, 1324, 1655, 2510, 3310, 4769, 5020, 6289, 6620, 9538, 12578, 19076, 23845, 25156, 31445, 47690, 62890, 83081, 95380, 125780, 166162, 332324, 415405, 830810, 1578539, 1661620, 3157078, 6314156, 7892695, 15785390, 31570780]

約数ペア:

[(1, 31570780), (2, 15785390), (4, 7892695), (5, 6314156), (10, 3157078), (19, 1661620), (20, 1578539), (38, 830810), (76, 415405), (95, 332324), (190, 166162), (251, 125780), (331, 95380), (380, 83081), (502, 62890), (662, 47690), (1004, 31445), (1255, 25156), (1324, 23845), (1655, 19076), (2510, 12578), (3310, 9538), (4769, 6620), (5020, 6289)]