7815703980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18608819}}^1$

素因数の和:18608838

約数の個数: 48

約数和(自身を含む): 25010254080

約数和(自身を除く): 17194550100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18608819, 37217638, 55826457, 74435276, 93044095, 111652914, 130261733, 186088190, 223305828, 260523466, 279132285, 372176380, 390785199, 521046932, 558264570, 651308665, 781570398, 1116529140, 1302617330, 1563140796, 1953925995, 2605234660, 3907851990, 7815703980]

約数ペア:

[(1, 7815703980), (2, 3907851990), (3, 2605234660), (4, 1953925995), (5, 1563140796), (6, 1302617330), (7, 1116529140), (10, 781570398), (12, 651308665), (14, 558264570), (15, 521046932), (20, 390785199), (21, 372176380), (28, 279132285), (30, 260523466), (35, 223305828), (42, 186088190), (60, 130261733), (70, 111652914), (84, 93044095), (105, 74435276), (140, 55826457), (210, 37217638), (420, 18608819)]