12920485390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{359}}^1\times {\mathrm{2141}}^1$

素因数の和:2589

約数の個数: 48

約数和(自身を含む): 23915515680

約数和(自身を除く): 10995030290

約数列:

[1, 2, 5, 10, 41, 82, 205, 359, 410, 718, 1681, 1795, 2141, 3362, 3590, 4282, 8405, 10705, 14719, 16810, 21410, 29438, 73595, 87781, 147190, 175562, 438905, 603479, 768619, 877810, 1206958, 1537238, 3017395, 3599021, 3843095, 6034790, 7198042, 7686190, 17995105, 31513379, 35990210, 63026758, 157566895, 315133790, 1292048539, 2584097078, 6460242695, 12920485390]

約数ペア:

[(1, 12920485390), (2, 6460242695), (5, 2584097078), (10, 1292048539), (41, 315133790), (82, 157566895), (205, 63026758), (359, 35990210), (410, 31513379), (718, 17995105), (1681, 7686190), (1795, 7198042), (2141, 6034790), (3362, 3843095), (3590, 3599021), (4282, 3017395), (8405, 1537238), (10705, 1206958), (14719, 877810), (16810, 768619), (21410, 603479), (29438, 438905), (73595, 175562), (87781, 147190)]