66395945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 105062400

約数和(自身を除く): 38666455

約数列:

[1, 5, 7, 11, 35, 37, 55, 59, 77, 79, 185, 259, 295, 385, 395, 407, 413, 553, 649, 869, 1295, 2035, 2065, 2183, 2765, 2849, 2923, 3245, 4345, 4543, 4661, 6083, 10915, 14245, 14615, 15281, 20461, 22715, 23305, 24013, 30415, 32153, 32627, 51271, 76405, 102305, 120065, 160765, 163135, 168091, 172457, 225071, 256355, 358897, 840455, 862285, 1125355, 1207199, 1794485, 1897027, 6035995, 9485135, 13279189, 66395945]

約数ペア:

[(1, 66395945), (5, 13279189), (7, 9485135), (11, 6035995), (35, 1897027), (37, 1794485), (55, 1207199), (59, 1125355), (77, 862285), (79, 840455), (185, 358897), (259, 256355), (295, 225071), (385, 172457), (395, 168091), (407, 163135), (413, 160765), (553, 120065), (649, 102305), (869, 76405), (1295, 51271), (2035, 32627), (2065, 32153), (2183, 30415), (2765, 24013), (2849, 23305), (2923, 22715), (3245, 20461), (4345, 15281), (4543, 14615), (4661, 14245), (6083, 10915)]