13081720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8839}}^1$

素因数の和:8887

約数の個数: 32

約数和(自身を含む): 30232800

約数和(自身を除く): 17151080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 8839, 17678, 35356, 44195, 70712, 88390, 176780, 327043, 353560, 654086, 1308172, 1635215, 2616344, 3270430, 6540860, 13081720]

約数ペア:

[(1, 13081720), (2, 6540860), (4, 3270430), (5, 2616344), (8, 1635215), (10, 1308172), (20, 654086), (37, 353560), (40, 327043), (74, 176780), (148, 88390), (185, 70712), (296, 44195), (370, 35356), (740, 17678), (1480, 8839)]