31359380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1171}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 71670144

約数和(自身を除く): 40310764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1171, 1339, 2060, 2342, 2678, 4684, 5356, 5855, 6695, 11710, 13390, 15223, 23420, 26780, 30446, 60892, 76115, 120613, 152230, 241226, 304460, 482452, 603065, 1206130, 1567969, 2412260, 3135938, 6271876, 7839845, 15679690, 31359380]

約数ペア:

[(1, 31359380), (2, 15679690), (4, 7839845), (5, 6271876), (10, 3135938), (13, 2412260), (20, 1567969), (26, 1206130), (52, 603065), (65, 482452), (103, 304460), (130, 241226), (206, 152230), (260, 120613), (412, 76115), (515, 60892), (1030, 30446), (1171, 26780), (1339, 23420), (2060, 15223), (2342, 13390), (2678, 11710), (4684, 6695), (5356, 5855)]