2661507620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{36469}}^1$

素因数の和:36608

約数の個数: 48

約数和(自身を含む): 5789977200

約数和(自身を除く): 3128469580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 3649, 7298, 14596, 18245, 36469, 36490, 72938, 72980, 145876, 182345, 364690, 729380, 1495229, 2990458, 3245741, 5980916, 6491482, 7476145, 12982964, 14952290, 16228705, 29904580, 32457410, 64914820, 133075381, 266150762, 532301524, 665376905, 1330753810, 2661507620]

約数ペア:

[(1, 2661507620), (2, 1330753810), (4, 665376905), (5, 532301524), (10, 266150762), (20, 133075381), (41, 64914820), (82, 32457410), (89, 29904580), (164, 16228705), (178, 14952290), (205, 12982964), (356, 7476145), (410, 6491482), (445, 5980916), (820, 3245741), (890, 2990458), (1780, 1495229), (3649, 729380), (7298, 364690), (14596, 182345), (18245, 145876), (36469, 72980), (36490, 72938)]