30811990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16477}}^1$

素因数の和:16512

約数の個数: 32

約数和(自身を含む): 64066464

約数和(自身を除く): 33254474

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 16477, 32954, 82385, 164770, 181247, 280109, 362494, 560218, 906235, 1400545, 1812470, 2801090, 3081199, 6162398, 15405995, 30811990]

約数ペア:

[(1, 30811990), (2, 15405995), (5, 6162398), (10, 3081199), (11, 2801090), (17, 1812470), (22, 1400545), (34, 906235), (55, 560218), (85, 362494), (110, 280109), (170, 181247), (187, 164770), (374, 82385), (935, 32954), (1870, 16477)]