19903940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8363}}^1$

素因数の和:8396

約数の個数: 48

約数和(自身を含む): 50585472

約数和(自身を除く): 30681532

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8363, 16726, 33452, 41815, 58541, 83630, 117082, 142171, 167260, 234164, 284342, 292705, 568684, 585410, 710855, 995197, 1170820, 1421710, 1990394, 2843420, 3980788, 4975985, 9951970, 19903940]

約数ペア:

[(1, 19903940), (2, 9951970), (4, 4975985), (5, 3980788), (7, 2843420), (10, 1990394), (14, 1421710), (17, 1170820), (20, 995197), (28, 710855), (34, 585410), (35, 568684), (68, 292705), (70, 284342), (85, 234164), (119, 167260), (140, 142171), (170, 117082), (238, 83630), (340, 58541), (476, 41815), (595, 33452), (1190, 16726), (2380, 8363)]