28435288

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^2\times {\mathrm{251}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 66146220

約数和(自身を除く): 37710932

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 251, 289, 392, 476, 502, 578, 833, 952, 1004, 1156, 1666, 1757, 2008, 2023, 2312, 3332, 3514, 4046, 4267, 6664, 7028, 8092, 8534, 12299, 14056, 14161, 16184, 17068, 24598, 28322, 29869, 34136, 49196, 56644, 59738, 72539, 98392, 113288, 119476, 145078, 209083, 238952, 290156, 418166, 507773, 580312, 836332, 1015546, 1672664, 2031092, 3554411, 4062184, 7108822, 14217644, 28435288]

約数ペア:

[(1, 28435288), (2, 14217644), (4, 7108822), (7, 4062184), (8, 3554411), (14, 2031092), (17, 1672664), (28, 1015546), (34, 836332), (49, 580312), (56, 507773), (68, 418166), (98, 290156), (119, 238952), (136, 209083), (196, 145078), (238, 119476), (251, 113288), (289, 98392), (392, 72539), (476, 59738), (502, 56644), (578, 49196), (833, 34136), (952, 29869), (1004, 28322), (1156, 24598), (1666, 17068), (1757, 16184), (2008, 14161), (2023, 14056), (2312, 12299), (3332, 8534), (3514, 8092), (4046, 7028), (4267, 6664)]