28000490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 62380800

約数和(自身を除く): 34380310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 37, 38, 70, 74, 95, 133, 185, 190, 259, 266, 370, 518, 569, 665, 703, 1138, 1295, 1330, 1406, 2590, 2845, 3515, 3983, 4921, 5690, 7030, 7966, 9842, 10811, 19915, 21053, 21622, 24605, 39830, 42106, 49210, 54055, 75677, 105265, 108110, 147371, 151354, 210530, 294742, 378385, 400007, 736855, 756770, 800014, 1473710, 2000035, 2800049, 4000070, 5600098, 14000245, 28000490]

約数ペア:

[(1, 28000490), (2, 14000245), (5, 5600098), (7, 4000070), (10, 2800049), (14, 2000035), (19, 1473710), (35, 800014), (37, 756770), (38, 736855), (70, 400007), (74, 378385), (95, 294742), (133, 210530), (185, 151354), (190, 147371), (259, 108110), (266, 105265), (370, 75677), (518, 54055), (569, 49210), (665, 42106), (703, 39830), (1138, 24605), (1295, 21622), (1330, 21053), (1406, 19915), (2590, 10811), (2845, 9842), (3515, 7966), (3983, 7030), (4921, 5690)]