28172540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3461}}^1$

素因数の和:3518

約数の個数: 48

約数和(自身を含む): 66304224

約数和(自身を除く): 38131684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 3461, 4070, 6922, 8140, 13844, 17305, 34610, 38071, 69220, 76142, 128057, 152284, 190355, 256114, 380710, 512228, 640285, 761420, 1280570, 1408627, 2561140, 2817254, 5634508, 7043135, 14086270, 28172540]

約数ペア:

[(1, 28172540), (2, 14086270), (4, 7043135), (5, 5634508), (10, 2817254), (11, 2561140), (20, 1408627), (22, 1280570), (37, 761420), (44, 640285), (55, 512228), (74, 380710), (110, 256114), (148, 190355), (185, 152284), (220, 128057), (370, 76142), (407, 69220), (740, 38071), (814, 34610), (1628, 17305), (2035, 13844), (3461, 8140), (4070, 6922)]