90899105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 125169408

約数和(自身を除く): 34270303

約数列:

[1, 5, 11, 23, 55, 115, 181, 253, 397, 905, 1265, 1985, 1991, 4163, 4367, 9131, 9955, 20815, 21835, 45655, 45793, 71857, 100441, 228965, 359285, 502205, 790427, 1652711, 3952135, 8263555, 18179821, 90899105]

約数ペア:

[(1, 90899105), (5, 18179821), (11, 8263555), (23, 3952135), (55, 1652711), (115, 790427), (181, 502205), (253, 359285), (397, 228965), (905, 100441), (1265, 71857), (1985, 45793), (1991, 45655), (4163, 21835), (4367, 20815), (9131, 9955)]