20899687540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3613}}^1\times {\mathrm{7817}}^1$

素因数の和:11476

約数の個数: 48

約数和(自身を含む): 45093786192

約数和(自身を除く): 24194098652

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 3613, 7226, 7817, 14452, 15634, 18065, 31268, 36130, 39085, 72260, 78170, 133681, 156340, 267362, 289229, 534724, 578458, 668405, 1156916, 1336810, 1446145, 2673620, 2892290, 5784580, 28242821, 56485642, 112971284, 141214105, 282428210, 564856420, 1044984377, 2089968754, 4179937508, 5224921885, 10449843770, 20899687540]

約数ペア:

[(1, 20899687540), (2, 10449843770), (4, 5224921885), (5, 4179937508), (10, 2089968754), (20, 1044984377), (37, 564856420), (74, 282428210), (148, 141214105), (185, 112971284), (370, 56485642), (740, 28242821), (3613, 5784580), (7226, 2892290), (7817, 2673620), (14452, 1446145), (15634, 1336810), (18065, 1156916), (31268, 668405), (36130, 578458), (39085, 534724), (72260, 289229), (78170, 267362), (133681, 156340)]