353226775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 492825600

約数和(自身を除く): 139598825

約数列:

[1, 5, 11, 25, 55, 71, 79, 229, 275, 355, 395, 781, 869, 1145, 1775, 1975, 2519, 3905, 4345, 5609, 5725, 12595, 16259, 18091, 19525, 21725, 28045, 61699, 62975, 81295, 90455, 140225, 178849, 199001, 308495, 406475, 452275, 894245, 995005, 1284461, 1542475, 4471225, 4975025, 6422305, 14129071, 32111525, 70645355, 353226775]

約数ペア:

[(1, 353226775), (5, 70645355), (11, 32111525), (25, 14129071), (55, 6422305), (71, 4975025), (79, 4471225), (229, 1542475), (275, 1284461), (355, 995005), (395, 894245), (781, 452275), (869, 406475), (1145, 308495), (1775, 199001), (1975, 178849), (2519, 140225), (3905, 90455), (4345, 81295), (5609, 62975), (5725, 61699), (12595, 28045), (16259, 21725), (18091, 19525)]