19842688

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 42840000

約数和(自身を除く): 22997312

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 128, 152, 164, 199, 304, 328, 398, 608, 656, 779, 796, 1216, 1312, 1558, 1592, 2432, 2624, 3116, 3184, 3781, 5248, 6232, 6368, 7562, 8159, 12464, 12736, 15124, 16318, 24928, 25472, 30248, 32636, 49856, 60496, 65272, 99712, 120992, 130544, 155021, 241984, 261088, 310042, 483968, 522176, 620084, 1044352, 1240168, 2480336, 4960672, 9921344, 19842688]

約数ペア:

[(1, 19842688), (2, 9921344), (4, 4960672), (8, 2480336), (16, 1240168), (19, 1044352), (32, 620084), (38, 522176), (41, 483968), (64, 310042), (76, 261088), (82, 241984), (128, 155021), (152, 130544), (164, 120992), (199, 99712), (304, 65272), (328, 60496), (398, 49856), (608, 32636), (656, 30248), (779, 25472), (796, 24928), (1216, 16318), (1312, 15124), (1558, 12736), (1592, 12464), (2432, 8159), (2624, 7562), (3116, 6368), (3184, 6232), (3781, 5248)]