20742890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17431}}^1$

素因数の和:17462

約数の個数: 32

約数和(自身を含む): 45183744

約数和(自身を除く): 24440854

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17431, 34862, 87155, 122017, 174310, 244034, 296327, 592654, 610085, 1220170, 1481635, 2074289, 2963270, 4148578, 10371445, 20742890]

約数ペア:

[(1, 20742890), (2, 10371445), (5, 4148578), (7, 2963270), (10, 2074289), (14, 1481635), (17, 1220170), (34, 610085), (35, 592654), (70, 296327), (85, 244034), (119, 174310), (170, 122017), (238, 87155), (595, 34862), (1190, 17431)]