8721340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 19649952

約数和(自身を除く): 10928612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 113, 170, 226, 227, 340, 452, 454, 565, 908, 1130, 1135, 1921, 2260, 2270, 3842, 3859, 4540, 7684, 7718, 9605, 15436, 19210, 19295, 25651, 38420, 38590, 51302, 77180, 102604, 128255, 256510, 436067, 513020, 872134, 1744268, 2180335, 4360670, 8721340]

約数ペア:

[(1, 8721340), (2, 4360670), (4, 2180335), (5, 1744268), (10, 872134), (17, 513020), (20, 436067), (34, 256510), (68, 128255), (85, 102604), (113, 77180), (170, 51302), (226, 38590), (227, 38420), (340, 25651), (452, 19295), (454, 19210), (565, 15436), (908, 9605), (1130, 7718), (1135, 7684), (1921, 4540), (2260, 3859), (2270, 3842)]