31642780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7159}}^1$

素因数の和:7198

約数の個数: 48

約数和(自身を含む): 75781440

約数和(自身を除く): 44138660

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, 7159, 14318, 28636, 35795, 71590, 93067, 121703, 143180, 186134, 243406, 372268, 465335, 486812, 608515, 930670, 1217030, 1582139, 1861340, 2434060, 3164278, 6328556, 7910695, 15821390, 31642780]

約数ペア:

[(1, 31642780), (2, 15821390), (4, 7910695), (5, 6328556), (10, 3164278), (13, 2434060), (17, 1861340), (20, 1582139), (26, 1217030), (34, 930670), (52, 608515), (65, 486812), (68, 465335), (85, 372268), (130, 243406), (170, 186134), (221, 143180), (260, 121703), (340, 93067), (442, 71590), (884, 35795), (1105, 28636), (2210, 14318), (4420, 7159)]