19908632

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 40524000

約数和(自身を除く): 20615368

約数列:

[1, 2, 4, 8, 17, 34, 68, 79, 109, 136, 158, 218, 289, 316, 436, 578, 632, 872, 1156, 1343, 1853, 2312, 2686, 3706, 5372, 7412, 8611, 10744, 14824, 17222, 22831, 31501, 34444, 45662, 63002, 68888, 91324, 126004, 146387, 182648, 252008, 292774, 585548, 1171096, 2488579, 4977158, 9954316, 19908632]

約数ペア:

[(1, 19908632), (2, 9954316), (4, 4977158), (8, 2488579), (17, 1171096), (34, 585548), (68, 292774), (79, 252008), (109, 182648), (136, 146387), (158, 126004), (218, 91324), (289, 68888), (316, 63002), (436, 45662), (578, 34444), (632, 31501), (872, 22831), (1156, 17222), (1343, 14824), (1853, 10744), (2312, 8611), (2686, 7412), (3706, 5372)]