20797650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 72

約数和(自身を含む): 56508660

約数和(自身を除く): 35711010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 113, 150, 225, 226, 339, 409, 450, 565, 678, 818, 1017, 1130, 1227, 1695, 2034, 2045, 2454, 2825, 3390, 3681, 4090, 5085, 5650, 6135, 7362, 8475, 10170, 10225, 12270, 16950, 18405, 20450, 25425, 30675, 36810, 46217, 50850, 61350, 92025, 92434, 138651, 184050, 231085, 277302, 415953, 462170, 693255, 831906, 1155425, 1386510, 2079765, 2310850, 3466275, 4159530, 6932550, 10398825, 20797650]

約数ペア:

[(1, 20797650), (2, 10398825), (3, 6932550), (5, 4159530), (6, 3466275), (9, 2310850), (10, 2079765), (15, 1386510), (18, 1155425), (25, 831906), (30, 693255), (45, 462170), (50, 415953), (75, 277302), (90, 231085), (113, 184050), (150, 138651), (225, 92434), (226, 92025), (339, 61350), (409, 50850), (450, 46217), (565, 36810), (678, 30675), (818, 25425), (1017, 20450), (1130, 18405), (1227, 16950), (1695, 12270), (2034, 10225), (2045, 10170), (2454, 8475), (2825, 7362), (3390, 6135), (3681, 5650), (4090, 5085)]