628969825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 971187840

約数和(自身を除く): 342218015

約数列:

[1, 5, 11, 17, 19, 25, 55, 73, 85, 95, 97, 187, 209, 275, 323, 365, 425, 475, 485, 803, 935, 1045, 1067, 1241, 1387, 1615, 1649, 1825, 1843, 2425, 3553, 4015, 4675, 5225, 5335, 6205, 6935, 7081, 8075, 8245, 9215, 13651, 15257, 17765, 18139, 20075, 20273, 23579, 26675, 31025, 31331, 34675, 35405, 41225, 46075, 68255, 76285, 77891, 88825, 90695, 101365, 117895, 120377, 134539, 156655, 177025, 259369, 341275, 344641, 381425, 389455, 453475, 506825, 589475, 601885, 672695, 783275, 1296845, 1324147, 1479929, 1723205, 1947275, 2287163, 3009425, 3363475, 6484225, 6620735, 7399645, 8616025, 11435815, 25158793, 33103675, 36998225, 57179075, 125793965, 628969825]

約数ペア:

[(1, 628969825), (5, 125793965), (11, 57179075), (17, 36998225), (19, 33103675), (25, 25158793), (55, 11435815), (73, 8616025), (85, 7399645), (95, 6620735), (97, 6484225), (187, 3363475), (209, 3009425), (275, 2287163), (323, 1947275), (365, 1723205), (425, 1479929), (475, 1324147), (485, 1296845), (803, 783275), (935, 672695), (1045, 601885), (1067, 589475), (1241, 506825), (1387, 453475), (1615, 389455), (1649, 381425), (1825, 344641), (1843, 341275), (2425, 259369), (3553, 177025), (4015, 156655), (4675, 134539), (5225, 120377), (5335, 117895), (6205, 101365), (6935, 90695), (7081, 88825), (8075, 77891), (8245, 76285), (9215, 68255), (13651, 46075), (15257, 41225), (17765, 35405), (18139, 34675), (20075, 31331), (20273, 31025), (23579, 26675)]