28181512

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 30743288

約数列:

[1, 2, 4, 8, 17, 34, 43, 61, 68, 79, 86, 122, 136, 158, 172, 244, 316, 344, 488, 632, 731, 1037, 1343, 1462, 2074, 2623, 2686, 2924, 3397, 4148, 4819, 5246, 5372, 5848, 6794, 8296, 9638, 10492, 10744, 13588, 19276, 20984, 27176, 38552, 44591, 57749, 81923, 89182, 115498, 163846, 178364, 207217, 230996, 327692, 356728, 414434, 461992, 655384, 828868, 1657736, 3522689, 7045378, 14090756, 28181512]

約数ペア:

[(1, 28181512), (2, 14090756), (4, 7045378), (8, 3522689), (17, 1657736), (34, 828868), (43, 655384), (61, 461992), (68, 414434), (79, 356728), (86, 327692), (122, 230996), (136, 207217), (158, 178364), (172, 163846), (244, 115498), (316, 89182), (344, 81923), (488, 57749), (632, 44591), (731, 38552), (1037, 27176), (1343, 20984), (1462, 19276), (2074, 13588), (2623, 10744), (2686, 10492), (2924, 9638), (3397, 8296), (4148, 6794), (4819, 5848), (5246, 5372)]