31145140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1163}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 71180928

約数和(自身を除く): 40035788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1163, 1339, 2060, 2326, 2678, 4652, 5356, 5815, 6695, 11630, 13390, 15119, 23260, 26780, 30238, 60476, 75595, 119789, 151190, 239578, 302380, 479156, 598945, 1197890, 1557257, 2395780, 3114514, 6229028, 7786285, 15572570, 31145140]

約数ペア:

[(1, 31145140), (2, 15572570), (4, 7786285), (5, 6229028), (10, 3114514), (13, 2395780), (20, 1557257), (26, 1197890), (52, 598945), (65, 479156), (103, 302380), (130, 239578), (206, 151190), (260, 119789), (412, 75595), (515, 60476), (1030, 30238), (1163, 26780), (1339, 23260), (2060, 15119), (2326, 13390), (2678, 11630), (4652, 6695), (5356, 5815)]