18293680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3413}}^1$

素因数の和:3493

約数の個数: 40

約数和(自身を含む): 43180272

約数和(自身を除く): 24886592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3413, 5360, 6826, 13652, 17065, 27304, 34130, 54608, 68260, 136520, 228671, 273040, 457342, 914684, 1143355, 1829368, 2286710, 3658736, 4573420, 9146840, 18293680]

約数ペア:

[(1, 18293680), (2, 9146840), (4, 4573420), (5, 3658736), (8, 2286710), (10, 1829368), (16, 1143355), (20, 914684), (40, 457342), (67, 273040), (80, 228671), (134, 136520), (268, 68260), (335, 54608), (536, 34130), (670, 27304), (1072, 17065), (1340, 13652), (2680, 6826), (3413, 5360)]