80381420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{5081}}^1$

素因数の和:5210

約数の個数: 48

約数和(自身を含む): 194660928

約数和(自身を除く): 114279508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 5081, 7910, 10162, 15820, 20324, 25405, 35567, 50810, 71134, 101620, 142268, 177835, 355670, 574153, 711340, 1148306, 2296612, 2870765, 4019071, 5741530, 8038142, 11483060, 16076284, 20095355, 40190710, 80381420]

約数ペア:

[(1, 80381420), (2, 40190710), (4, 20095355), (5, 16076284), (7, 11483060), (10, 8038142), (14, 5741530), (20, 4019071), (28, 2870765), (35, 2296612), (70, 1148306), (113, 711340), (140, 574153), (226, 355670), (452, 177835), (565, 142268), (791, 101620), (1130, 71134), (1582, 50810), (2260, 35567), (3164, 25405), (3955, 20324), (5081, 15820), (7910, 10162)]