12818920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 30844800

約数和(自身を除く): 18025880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 167, 190, 202, 334, 380, 404, 505, 668, 760, 808, 835, 1010, 1336, 1670, 1919, 2020, 3173, 3340, 3838, 4040, 6346, 6680, 7676, 9595, 12692, 15352, 15865, 16867, 19190, 25384, 31730, 33734, 38380, 63460, 67468, 76760, 84335, 126920, 134936, 168670, 320473, 337340, 640946, 674680, 1281892, 1602365, 2563784, 3204730, 6409460, 12818920]

約数ペア:

[(1, 12818920), (2, 6409460), (4, 3204730), (5, 2563784), (8, 1602365), (10, 1281892), (19, 674680), (20, 640946), (38, 337340), (40, 320473), (76, 168670), (95, 134936), (101, 126920), (152, 84335), (167, 76760), (190, 67468), (202, 63460), (334, 38380), (380, 33734), (404, 31730), (505, 25384), (668, 19190), (760, 16867), (808, 15865), (835, 15352), (1010, 12692), (1336, 9595), (1670, 7676), (1919, 6680), (2020, 6346), (3173, 4040), (3340, 3838)]