28726540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 63467712

約数和(自身を除く): 34741172

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 317, 394, 460, 634, 788, 985, 1268, 1585, 1970, 3170, 3940, 4531, 6340, 7291, 9062, 14582, 18124, 22655, 29164, 36455, 45310, 62449, 72910, 90620, 124898, 145820, 249796, 312245, 624490, 1248980, 1436327, 2872654, 5745308, 7181635, 14363270, 28726540]

約数ペア:

[(1, 28726540), (2, 14363270), (4, 7181635), (5, 5745308), (10, 2872654), (20, 1436327), (23, 1248980), (46, 624490), (92, 312245), (115, 249796), (197, 145820), (230, 124898), (317, 90620), (394, 72910), (460, 62449), (634, 45310), (788, 36455), (985, 29164), (1268, 22655), (1585, 18124), (1970, 14582), (3170, 9062), (3940, 7291), (4531, 6340)]