28467880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{347}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 73664640

約数和(自身を除く): 45196760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 293, 347, 586, 694, 1172, 1388, 1465, 1735, 2051, 2344, 2429, 2776, 2930, 3470, 4102, 4858, 5860, 6940, 8204, 9716, 10255, 11720, 12145, 13880, 16408, 19432, 20510, 24290, 41020, 48580, 82040, 97160, 101671, 203342, 406684, 508355, 711697, 813368, 1016710, 1423394, 2033420, 2846788, 3558485, 4066840, 5693576, 7116970, 14233940, 28467880]

約数ペア:

[(1, 28467880), (2, 14233940), (4, 7116970), (5, 5693576), (7, 4066840), (8, 3558485), (10, 2846788), (14, 2033420), (20, 1423394), (28, 1016710), (35, 813368), (40, 711697), (56, 508355), (70, 406684), (140, 203342), (280, 101671), (293, 97160), (347, 82040), (586, 48580), (694, 41020), (1172, 24290), (1388, 20510), (1465, 19432), (1735, 16408), (2051, 13880), (2344, 12145), (2429, 11720), (2776, 10255), (2930, 9716), (3470, 8204), (4102, 6940), (4858, 5860)]