28787528

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2749}}^1$

素因数の和:2790

約数の個数: 64

約数和(自身を含む): 71280000

約数和(自身を除く): 42492472

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 616, 748, 952, 1309, 1496, 2618, 2749, 5236, 5498, 10472, 10996, 19243, 21992, 30239, 38486, 46733, 60478, 76972, 93466, 120956, 153944, 186932, 211673, 241912, 327131, 373864, 423346, 514063, 654262, 846692, 1028126, 1308524, 1693384, 2056252, 2617048, 3598441, 4112504, 7196882, 14393764, 28787528]

約数ペア:

[(1, 28787528), (2, 14393764), (4, 7196882), (7, 4112504), (8, 3598441), (11, 2617048), (14, 2056252), (17, 1693384), (22, 1308524), (28, 1028126), (34, 846692), (44, 654262), (56, 514063), (68, 423346), (77, 373864), (88, 327131), (119, 241912), (136, 211673), (154, 186932), (187, 153944), (238, 120956), (308, 93466), (374, 76972), (476, 60478), (616, 46733), (748, 38486), (952, 30239), (1309, 21992), (1496, 19243), (2618, 10996), (2749, 10472), (5236, 5498)]