42121580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123887}}^1$

素因数の和:123913

約数の個数: 24

約数和(自身を含む): 93659328

約数和(自身を除く): 51537748

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123887, 247774, 495548, 619435, 1238870, 2106079, 2477740, 4212158, 8424316, 10530395, 21060790, 42121580]

約数ペア:

[(1, 42121580), (2, 21060790), (4, 10530395), (5, 8424316), (10, 4212158), (17, 2477740), (20, 2106079), (34, 1238870), (68, 619435), (85, 495548), (170, 247774), (340, 123887)]