19013380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 22354940

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 113, 179, 188, 226, 235, 358, 452, 470, 565, 716, 895, 940, 1130, 1790, 2260, 3580, 5311, 8413, 10622, 16826, 20227, 21244, 26555, 33652, 40454, 42065, 53110, 80908, 84130, 101135, 106220, 168260, 202270, 404540, 950669, 1901338, 3802676, 4753345, 9506690, 19013380]

約数ペア:

[(1, 19013380), (2, 9506690), (4, 4753345), (5, 3802676), (10, 1901338), (20, 950669), (47, 404540), (94, 202270), (113, 168260), (179, 106220), (188, 101135), (226, 84130), (235, 80908), (358, 53110), (452, 42065), (470, 40454), (565, 33652), (716, 26555), (895, 21244), (940, 20227), (1130, 16826), (1790, 10622), (2260, 8413), (3580, 5311)]