438414620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{21017}}^1$

素因数の和:21182

約数の個数: 48

約数和(自身を含む): 1059307200

約数和(自身を除く): 620892580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 10430, 20860, 21017, 42034, 84068, 105085, 147119, 210170, 294238, 420340, 588476, 735595, 1471190, 2942380, 3131533, 6263066, 12526132, 15657665, 21920731, 31315330, 43841462, 62630660, 87682924, 109603655, 219207310, 438414620]

約数ペア:

[(1, 438414620), (2, 219207310), (4, 109603655), (5, 87682924), (7, 62630660), (10, 43841462), (14, 31315330), (20, 21920731), (28, 15657665), (35, 12526132), (70, 6263066), (140, 3131533), (149, 2942380), (298, 1471190), (596, 735595), (745, 588476), (1043, 420340), (1490, 294238), (2086, 210170), (2980, 147119), (4172, 105085), (5215, 84068), (10430, 42034), (20860, 21017)]