2151713720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{133481}}^1$

素因数の和:133536

約数の個数: 64

約数和(自身を含む): 5381994240

約数和(自身を除く): 3230280520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 133481, 266962, 533924, 667405, 1067848, 1334810, 1735253, 2669620, 3470506, 4137911, 5339240, 6941012, 8275822, 8676265, 13882024, 16551644, 17352530, 20689555, 33103288, 34705060, 41379110, 53792843, 69410120, 82758220, 107585686, 165516440, 215171372, 268964215, 430342744, 537928430, 1075856860, 2151713720]

約数ペア:

[(1, 2151713720), (2, 1075856860), (4, 537928430), (5, 430342744), (8, 268964215), (10, 215171372), (13, 165516440), (20, 107585686), (26, 82758220), (31, 69410120), (40, 53792843), (52, 41379110), (62, 34705060), (65, 33103288), (104, 20689555), (124, 17352530), (130, 16551644), (155, 13882024), (248, 8676265), (260, 8275822), (310, 6941012), (403, 5339240), (520, 4137911), (620, 3470506), (806, 2669620), (1240, 1735253), (1612, 1334810), (2015, 1067848), (3224, 667405), (4030, 533924), (8060, 266962), (16120, 133481)]