28369640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 69627600

約数和(自身を除く): 41257960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 178, 260, 356, 445, 520, 613, 712, 890, 1157, 1226, 1780, 2314, 2452, 3065, 3560, 4628, 4904, 5785, 6130, 7969, 9256, 11570, 12260, 15938, 23140, 24520, 31876, 39845, 46280, 54557, 63752, 79690, 109114, 159380, 218228, 272785, 318760, 436456, 545570, 709241, 1091140, 1418482, 2182280, 2836964, 3546205, 5673928, 7092410, 14184820, 28369640]

約数ペア:

[(1, 28369640), (2, 14184820), (4, 7092410), (5, 5673928), (8, 3546205), (10, 2836964), (13, 2182280), (20, 1418482), (26, 1091140), (40, 709241), (52, 545570), (65, 436456), (89, 318760), (104, 272785), (130, 218228), (178, 159380), (260, 109114), (356, 79690), (445, 63752), (520, 54557), (613, 46280), (712, 39845), (890, 31876), (1157, 24520), (1226, 23140), (1780, 15938), (2314, 12260), (2452, 11570), (3065, 9256), (3560, 7969), (4628, 6130), (4904, 5785)]