20838675

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 42497280

約数和(自身を除く): 21658605

約数列:

[1, 3, 5, 11, 13, 15, 25, 29, 33, 39, 55, 65, 67, 75, 87, 143, 145, 165, 195, 201, 275, 319, 325, 335, 377, 429, 435, 715, 725, 737, 825, 871, 957, 975, 1005, 1131, 1595, 1675, 1885, 1943, 2145, 2175, 2211, 2613, 3575, 3685, 4147, 4355, 4785, 5025, 5655, 5829, 7975, 9425, 9581, 9715, 10725, 11055, 12441, 13065, 18425, 20735, 21373, 21775, 23925, 25259, 28275, 28743, 29145, 47905, 48575, 55275, 62205, 64119, 65325, 75777, 103675, 106865, 126295, 143715, 145725, 239525, 277849, 311025, 320595, 378885, 534325, 631475, 718575, 833547, 1389245, 1602975, 1894425, 4167735, 6946225, 20838675]

約数ペア:

[(1, 20838675), (3, 6946225), (5, 4167735), (11, 1894425), (13, 1602975), (15, 1389245), (25, 833547), (29, 718575), (33, 631475), (39, 534325), (55, 378885), (65, 320595), (67, 311025), (75, 277849), (87, 239525), (143, 145725), (145, 143715), (165, 126295), (195, 106865), (201, 103675), (275, 75777), (319, 65325), (325, 64119), (335, 62205), (377, 55275), (429, 48575), (435, 47905), (715, 29145), (725, 28743), (737, 28275), (825, 25259), (871, 23925), (957, 21775), (975, 21373), (1005, 20735), (1131, 18425), (1595, 13065), (1675, 12441), (1885, 11055), (1943, 10725), (2145, 9715), (2175, 9581), (2211, 9425), (2613, 7975), (3575, 5829), (3685, 5655), (4147, 5025), (4355, 4785)]