28206035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 40255488

約数和(自身を除く): 12049453

約数列:

[1, 5, 11, 13, 55, 65, 103, 143, 383, 515, 715, 1133, 1339, 1915, 4213, 4979, 5665, 6695, 14729, 21065, 24895, 39449, 54769, 73645, 197245, 273845, 433939, 512837, 2169695, 2564185, 5641207, 28206035]

約数ペア:

[(1, 28206035), (5, 5641207), (11, 2564185), (13, 2169695), (55, 512837), (65, 433939), (103, 273845), (143, 197245), (383, 73645), (515, 54769), (715, 39449), (1133, 24895), (1339, 21065), (1915, 14729), (4213, 6695), (4979, 5665)]