64665280

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11887}}^1$

素因数の和:11921

約数の個数: 56

約数和(自身を含む): 163055808

約数和(自身を除く): 98390528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5440, 11887, 23774, 47548, 59435, 95096, 118870, 190192, 202079, 237740, 380384, 404158, 475480, 760768, 808316, 950960, 1010395, 1616632, 1901920, 2020790, 3233264, 3803840, 4041580, 6466528, 8083160, 12933056, 16166320, 32332640, 64665280]

約数ペア:

[(1, 64665280), (2, 32332640), (4, 16166320), (5, 12933056), (8, 8083160), (10, 6466528), (16, 4041580), (17, 3803840), (20, 3233264), (32, 2020790), (34, 1901920), (40, 1616632), (64, 1010395), (68, 950960), (80, 808316), (85, 760768), (136, 475480), (160, 404158), (170, 380384), (272, 237740), (320, 202079), (340, 190192), (544, 118870), (680, 95096), (1088, 59435), (1360, 47548), (2720, 23774), (5440, 11887)]