1638229888

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{6907}}^1$

素因数の和:7047

約数の個数: 64

約数和(自身を含む): 3487849200

約数和(自身を除く): 1849619312

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 109, 128, 136, 218, 272, 436, 544, 872, 1088, 1744, 1853, 2176, 3488, 3706, 6907, 6976, 7412, 13814, 13952, 14824, 27628, 29648, 55256, 59296, 110512, 117419, 118592, 221024, 234838, 237184, 442048, 469676, 752863, 884096, 939352, 1505726, 1878704, 3011452, 3757408, 6022904, 7514816, 12045808, 12798671, 15029632, 24091616, 25597342, 48183232, 51194684, 96366464, 102389368, 204778736, 409557472, 819114944, 1638229888]

約数ペア:

[(1, 1638229888), (2, 819114944), (4, 409557472), (8, 204778736), (16, 102389368), (17, 96366464), (32, 51194684), (34, 48183232), (64, 25597342), (68, 24091616), (109, 15029632), (128, 12798671), (136, 12045808), (218, 7514816), (272, 6022904), (436, 3757408), (544, 3011452), (872, 1878704), (1088, 1505726), (1744, 939352), (1853, 884096), (2176, 752863), (3488, 469676), (3706, 442048), (6907, 237184), (6976, 234838), (7412, 221024), (13814, 118592), (13952, 117419), (14824, 110512), (27628, 59296), (29648, 55256)]