408402992

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{599}}^1\times {\mathrm{991}}^1$

素因数の和:1641

約数の個数: 40

約数和(自身を含む): 811852800

約数和(自身を除く): 403449808

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 599, 688, 991, 1198, 1982, 2396, 3964, 4792, 7928, 9584, 15856, 25757, 42613, 51514, 85226, 103028, 170452, 206056, 340904, 412112, 593609, 681808, 1187218, 2374436, 4748872, 9497744, 25525187, 51050374, 102100748, 204201496, 408402992]

約数ペア:

[(1, 408402992), (2, 204201496), (4, 102100748), (8, 51050374), (16, 25525187), (43, 9497744), (86, 4748872), (172, 2374436), (344, 1187218), (599, 681808), (688, 593609), (991, 412112), (1198, 340904), (1982, 206056), (2396, 170452), (3964, 103028), (4792, 85226), (7928, 51514), (9584, 42613), (15856, 25757)]