19271080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 46170000

約数和(自身を除く): 26898920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 449, 580, 740, 898, 1073, 1160, 1480, 1796, 2146, 2245, 3592, 4292, 4490, 5365, 8584, 8980, 10730, 13021, 16613, 17960, 21460, 26042, 33226, 42920, 52084, 65105, 66452, 83065, 104168, 130210, 132904, 166130, 260420, 332260, 481777, 520840, 664520, 963554, 1927108, 2408885, 3854216, 4817770, 9635540, 19271080]

約数ペア:

[(1, 19271080), (2, 9635540), (4, 4817770), (5, 3854216), (8, 2408885), (10, 1927108), (20, 963554), (29, 664520), (37, 520840), (40, 481777), (58, 332260), (74, 260420), (116, 166130), (145, 132904), (148, 130210), (185, 104168), (232, 83065), (290, 66452), (296, 65105), (370, 52084), (449, 42920), (580, 33226), (740, 26042), (898, 21460), (1073, 17960), (1160, 16613), (1480, 13021), (1796, 10730), (2146, 8980), (2245, 8584), (3592, 5365), (4292, 4490)]