87189440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20959}}^1$

素因数の和:20989

約数の個数: 56

約数和(自身を含む): 223601280

約数和(自身を除く): 136411840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 20959, 41918, 83836, 104795, 167672, 209590, 272467, 335344, 419180, 544934, 670688, 838360, 1089868, 1341376, 1362335, 1676720, 2179736, 2724670, 3353440, 4359472, 5449340, 6706880, 8718944, 10898680, 17437888, 21797360, 43594720, 87189440]

約数ペア:

[(1, 87189440), (2, 43594720), (4, 21797360), (5, 17437888), (8, 10898680), (10, 8718944), (13, 6706880), (16, 5449340), (20, 4359472), (26, 3353440), (32, 2724670), (40, 2179736), (52, 1676720), (64, 1362335), (65, 1341376), (80, 1089868), (104, 838360), (130, 670688), (160, 544934), (208, 419180), (260, 335344), (320, 272467), (416, 209590), (520, 167672), (832, 104795), (1040, 83836), (2080, 41918), (4160, 20959)]