639698720

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{26833}}^1$

素因数の和:26997

約数の個数: 48

約数和(自身を含む): 1521487800

約数和(自身を除く): 881789080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 596, 745, 1192, 1490, 2384, 2980, 4768, 5960, 11920, 23840, 26833, 53666, 107332, 134165, 214664, 268330, 429328, 536660, 858656, 1073320, 2146640, 3998117, 4293280, 7996234, 15992468, 19990585, 31984936, 39981170, 63969872, 79962340, 127939744, 159924680, 319849360, 639698720]

約数ペア:

[(1, 639698720), (2, 319849360), (4, 159924680), (5, 127939744), (8, 79962340), (10, 63969872), (16, 39981170), (20, 31984936), (32, 19990585), (40, 15992468), (80, 7996234), (149, 4293280), (160, 3998117), (298, 2146640), (596, 1073320), (745, 858656), (1192, 536660), (1490, 429328), (2384, 268330), (2980, 214664), (4768, 134165), (5960, 107332), (11920, 53666), (23840, 26833)]