1657887680

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{65581}}^1$

素因数の和:65677

約数の個数: 56

約数和(自身を含む): 3997878720

約数和(自身を除く): 2339991040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 12640, 25280, 65581, 131162, 262324, 327905, 524648, 655810, 1049296, 1311620, 2098592, 2623240, 4197184, 5180899, 5246480, 10361798, 10492960, 20723596, 20985920, 25904495, 41447192, 51808990, 82894384, 103617980, 165788768, 207235960, 331577536, 414471920, 828943840, 1657887680]

約数ペア:

[(1, 1657887680), (2, 828943840), (4, 414471920), (5, 331577536), (8, 207235960), (10, 165788768), (16, 103617980), (20, 82894384), (32, 51808990), (40, 41447192), (64, 25904495), (79, 20985920), (80, 20723596), (158, 10492960), (160, 10361798), (316, 5246480), (320, 5180899), (395, 4197184), (632, 2623240), (790, 2098592), (1264, 1311620), (1580, 1049296), (2528, 655810), (3160, 524648), (5056, 327905), (6320, 262324), (12640, 131162), (25280, 65581)]