28427280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{16921}}^1$

素因数の和:16944

約数の個数: 80

約数和(自身を含む): 100719744

約数和(自身を除く): 72292464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 16921, 33842, 50763, 67684, 84605, 101526, 118447, 135368, 169210, 203052, 236894, 253815, 270736, 338420, 355341, 406104, 473788, 507630, 592235, 676840, 710682, 812208, 947576, 1015260, 1184470, 1353680, 1421364, 1776705, 1895152, 2030520, 2368940, 2842728, 3553410, 4061040, 4737880, 5685456, 7106820, 9475760, 14213640, 28427280]

約数ペア:

[(1, 28427280), (2, 14213640), (3, 9475760), (4, 7106820), (5, 5685456), (6, 4737880), (7, 4061040), (8, 3553410), (10, 2842728), (12, 2368940), (14, 2030520), (15, 1895152), (16, 1776705), (20, 1421364), (21, 1353680), (24, 1184470), (28, 1015260), (30, 947576), (35, 812208), (40, 710682), (42, 676840), (48, 592235), (56, 507630), (60, 473788), (70, 406104), (80, 355341), (84, 338420), (105, 270736), (112, 253815), (120, 236894), (140, 203052), (168, 169210), (210, 135368), (240, 118447), (280, 101526), (336, 84605), (420, 67684), (560, 50763), (840, 33842), (1680, 16921)]