12856960

素因数分解:

$2^7\times 5^1\times {\mathrm{20089}}^1$

素因数の和:20108

約数の個数: 32

約数和(自身を含む): 30737700

約数和(自身を除く): 17880740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 20089, 40178, 80356, 100445, 160712, 200890, 321424, 401780, 642848, 803560, 1285696, 1607120, 2571392, 3214240, 6428480, 12856960]

約数ペア:

[(1, 12856960), (2, 6428480), (4, 3214240), (5, 2571392), (8, 1607120), (10, 1285696), (16, 803560), (20, 642848), (32, 401780), (40, 321424), (64, 200890), (80, 160712), (128, 100445), (160, 80356), (320, 40178), (640, 20089)]