1291603840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65101}}^1$

素因数の和:65151

約数の個数: 64

約数和(自身を含む): 3187393920

約数和(自身を除く): 1895790080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 65101, 130202, 260404, 325505, 520808, 651010, 1041616, 1302020, 2018131, 2083232, 2604040, 4036262, 4166464, 5208080, 8072524, 8332928, 10090655, 10416160, 16145048, 20181310, 20832320, 32290096, 40362620, 41664640, 64580192, 80725240, 129160384, 161450480, 258320768, 322900960, 645801920, 1291603840]

約数ペア:

[(1, 1291603840), (2, 645801920), (4, 322900960), (5, 258320768), (8, 161450480), (10, 129160384), (16, 80725240), (20, 64580192), (31, 41664640), (32, 40362620), (40, 32290096), (62, 20832320), (64, 20181310), (80, 16145048), (124, 10416160), (128, 10090655), (155, 8332928), (160, 8072524), (248, 5208080), (310, 4166464), (320, 4036262), (496, 2604040), (620, 2083232), (640, 2018131), (992, 1302020), (1240, 1041616), (1984, 651010), (2480, 520808), (3968, 325505), (4960, 260404), (9920, 130202), (19840, 65101)]