28988260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2621}}^1$

素因数の和:2716

約数の個数: 48

約数和(自身を含む): 70479360

約数和(自身を除く): 41491100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2621, 2765, 5242, 5530, 10484, 11060, 13105, 18347, 26210, 36694, 52420, 73388, 91735, 183470, 207059, 366940, 414118, 828236, 1035295, 1449413, 2070590, 2898826, 4141180, 5797652, 7247065, 14494130, 28988260]

約数ペア:

[(1, 28988260), (2, 14494130), (4, 7247065), (5, 5797652), (7, 4141180), (10, 2898826), (14, 2070590), (20, 1449413), (28, 1035295), (35, 828236), (70, 414118), (79, 366940), (140, 207059), (158, 183470), (316, 91735), (395, 73388), (553, 52420), (790, 36694), (1106, 26210), (1580, 18347), (2212, 13105), (2621, 11060), (2765, 10484), (5242, 5530)]