28310975

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{191}}^1$

素因数の和:237

約数の個数: 54

約数和(自身を含む): 45122112

約数和(自身を除く): 16811137

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 121, 175, 191, 245, 275, 385, 539, 605, 847, 955, 1225, 1337, 1925, 2101, 2695, 3025, 4235, 4775, 5929, 6685, 9359, 10505, 13475, 14707, 21175, 23111, 29645, 33425, 46795, 52525, 73535, 102949, 115555, 148225, 161777, 233975, 367675, 514745, 577775, 808885, 1132439, 2573725, 4044425, 5662195, 28310975]

約数ペア:

[(1, 28310975), (5, 5662195), (7, 4044425), (11, 2573725), (25, 1132439), (35, 808885), (49, 577775), (55, 514745), (77, 367675), (121, 233975), (175, 161777), (191, 148225), (245, 115555), (275, 102949), (385, 73535), (539, 52525), (605, 46795), (847, 33425), (955, 29645), (1225, 23111), (1337, 21175), (1925, 14707), (2101, 13475), (2695, 10505), (3025, 9359), (4235, 6685), (4775, 5929)]