81819075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2707}}^1$

素因数の和:2764

約数の個数: 48

約数和(自身を含む): 150434816

約数和(自身を除く): 68615741

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 325, 403, 465, 775, 975, 1209, 2015, 2325, 2707, 6045, 8121, 10075, 13535, 30225, 35191, 40605, 67675, 83917, 105573, 175955, 203025, 251751, 419585, 527865, 879775, 1090921, 1258755, 2097925, 2639325, 3272763, 5454605, 6293775, 16363815, 27273025, 81819075]

約数ペア:

[(1, 81819075), (3, 27273025), (5, 16363815), (13, 6293775), (15, 5454605), (25, 3272763), (31, 2639325), (39, 2097925), (65, 1258755), (75, 1090921), (93, 879775), (155, 527865), (195, 419585), (325, 251751), (403, 203025), (465, 175955), (775, 105573), (975, 83917), (1209, 67675), (2015, 40605), (2325, 35191), (2707, 30225), (6045, 13535), (8121, 10075)]