128528260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{11621}}^1$

素因数の和:11716

約数の個数: 48

約数和(自身を含む): 312399360

約数和(自身を除く): 183871100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 11621, 23242, 46484, 58105, 81347, 116210, 162694, 232420, 325388, 406735, 813470, 918059, 1626940, 1836118, 3672236, 4590295, 6426413, 9180590, 12852826, 18361180, 25705652, 32132065, 64264130, 128528260]

約数ペア:

[(1, 128528260), (2, 64264130), (4, 32132065), (5, 25705652), (7, 18361180), (10, 12852826), (14, 9180590), (20, 6426413), (28, 4590295), (35, 3672236), (70, 1836118), (79, 1626940), (140, 918059), (158, 813470), (316, 406735), (395, 325388), (553, 232420), (790, 162694), (1106, 116210), (1580, 81347), (2212, 58105), (2765, 46484), (5530, 23242), (11060, 11621)]