401023805

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 615014400

約数和(自身を除く): 213990595

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 103, 199, 215, 301, 455, 515, 559, 721, 995, 1339, 1393, 1505, 2587, 2795, 3605, 3913, 4429, 6695, 6965, 8557, 9373, 12935, 18109, 19565, 20497, 22145, 31003, 42785, 46865, 57577, 59899, 90545, 102485, 111241, 143479, 155015, 266461, 287885, 299495, 403039, 556205, 717395, 778687, 881371, 1332305, 1865227, 2015195, 3893435, 4406855, 6169597, 9326135, 11457823, 30847985, 57289115, 80204761, 401023805]

約数ペア:

[(1, 401023805), (5, 80204761), (7, 57289115), (13, 30847985), (35, 11457823), (43, 9326135), (65, 6169597), (91, 4406855), (103, 3893435), (199, 2015195), (215, 1865227), (301, 1332305), (455, 881371), (515, 778687), (559, 717395), (721, 556205), (995, 403039), (1339, 299495), (1393, 287885), (1505, 266461), (2587, 155015), (2795, 143479), (3605, 111241), (3913, 102485), (4429, 90545), (6695, 59899), (6965, 57577), (8557, 46865), (9373, 42785), (12935, 31003), (18109, 22145), (19565, 20497)]