19875890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2719}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 18900430

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2719, 3655, 5438, 7310, 13595, 27190, 46223, 92446, 116917, 231115, 233834, 462230, 584585, 1169170, 1987589, 3975178, 9937945, 19875890]

約数ペア:

[(1, 19875890), (2, 9937945), (5, 3975178), (10, 1987589), (17, 1169170), (34, 584585), (43, 462230), (85, 233834), (86, 231115), (170, 116917), (215, 92446), (430, 46223), (731, 27190), (1462, 13595), (2719, 7310), (3655, 5438)]