257788510

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4466

約数の個数: 64

約数和(自身を含む): 573091200

約数和(自身を除く): 315302690

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 343, 490, 595, 686, 833, 1190, 1666, 1715, 3430, 4165, 4421, 5831, 8330, 8842, 11662, 22105, 29155, 30947, 44210, 58310, 61894, 75157, 150314, 154735, 216629, 309470, 375785, 433258, 526099, 751570, 1052198, 1083145, 1516403, 2166290, 2630495, 3032806, 3682693, 5260990, 7365386, 7582015, 15164030, 18413465, 25778851, 36826930, 51557702, 128894255, 257788510]

約数ペア:

[(1, 257788510), (2, 128894255), (5, 51557702), (7, 36826930), (10, 25778851), (14, 18413465), (17, 15164030), (34, 7582015), (35, 7365386), (49, 5260990), (70, 3682693), (85, 3032806), (98, 2630495), (119, 2166290), (170, 1516403), (238, 1083145), (245, 1052198), (343, 751570), (490, 526099), (595, 433258), (686, 375785), (833, 309470), (1190, 216629), (1666, 154735), (1715, 150314), (3430, 75157), (4165, 61894), (4421, 58310), (5831, 44210), (8330, 30947), (8842, 29155), (11662, 22105)]