39801890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 73923840

約数和(自身を除く): 34121950

約数列:

[1, 2, 5, 10, 61, 71, 122, 142, 305, 355, 610, 710, 919, 1838, 4331, 4595, 8662, 9190, 21655, 43310, 56059, 65249, 112118, 130498, 280295, 326245, 560590, 652490, 3980189, 7960378, 19900945, 39801890]

約数ペア:

[(1, 39801890), (2, 19900945), (5, 7960378), (10, 3980189), (61, 652490), (71, 560590), (122, 326245), (142, 280295), (305, 130498), (355, 112118), (610, 65249), (710, 56059), (919, 43310), (1838, 21655), (4331, 9190), (4595, 8662)]