128436256

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3469}}^1$

素因数の和:3581

約数の個数: 48

約数和(自身を含む): 275448600

約数和(自身を除く): 147012344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 89, 104, 178, 208, 356, 416, 712, 1157, 1424, 2314, 2848, 3469, 4628, 6938, 9256, 13876, 18512, 27752, 37024, 45097, 55504, 90194, 111008, 180388, 308741, 360776, 617482, 721552, 1234964, 1443104, 2469928, 4013633, 4939856, 8027266, 9879712, 16054532, 32109064, 64218128, 128436256]

約数ペア:

[(1, 128436256), (2, 64218128), (4, 32109064), (8, 16054532), (13, 9879712), (16, 8027266), (26, 4939856), (32, 4013633), (52, 2469928), (89, 1443104), (104, 1234964), (178, 721552), (208, 617482), (356, 360776), (416, 308741), (712, 180388), (1157, 111008), (1424, 90194), (2314, 55504), (2848, 45097), (3469, 37024), (4628, 27752), (6938, 18512), (9256, 13876)]