20158335

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 39168000

約数和(自身を除く): 19009665

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 45, 57, 87, 95, 135, 145, 171, 261, 271, 285, 435, 513, 551, 783, 813, 855, 1305, 1355, 1653, 2439, 2565, 2755, 3915, 4065, 4959, 5149, 7317, 7859, 8265, 12195, 14877, 15447, 23577, 24795, 25745, 36585, 39295, 46341, 70731, 74385, 77235, 117885, 139023, 149321, 212193, 231705, 353655, 447963, 695115, 746605, 1060965, 1343889, 2239815, 4031667, 6719445, 20158335]

約数ペア:

[(1, 20158335), (3, 6719445), (5, 4031667), (9, 2239815), (15, 1343889), (19, 1060965), (27, 746605), (29, 695115), (45, 447963), (57, 353655), (87, 231705), (95, 212193), (135, 149321), (145, 139023), (171, 117885), (261, 77235), (271, 74385), (285, 70731), (435, 46341), (513, 39295), (551, 36585), (783, 25745), (813, 24795), (855, 23577), (1305, 15447), (1355, 14877), (1653, 12195), (2439, 8265), (2565, 7859), (2755, 7317), (3915, 5149), (4065, 4959)]