28953680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 77673600

約数和(自身を除く): 48719920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 347, 560, 596, 694, 745, 1043, 1192, 1388, 1490, 1735, 2086, 2384, 2429, 2776, 2980, 3470, 4172, 4858, 5215, 5552, 5960, 6940, 8344, 9716, 10430, 11920, 12145, 13880, 16688, 19432, 20860, 24290, 27760, 38864, 41720, 48580, 51703, 83440, 97160, 103406, 194320, 206812, 258515, 361921, 413624, 517030, 723842, 827248, 1034060, 1447684, 1809605, 2068120, 2895368, 3619210, 4136240, 5790736, 7238420, 14476840, 28953680]

約数ペア:

[(1, 28953680), (2, 14476840), (4, 7238420), (5, 5790736), (7, 4136240), (8, 3619210), (10, 2895368), (14, 2068120), (16, 1809605), (20, 1447684), (28, 1034060), (35, 827248), (40, 723842), (56, 517030), (70, 413624), (80, 361921), (112, 258515), (140, 206812), (149, 194320), (280, 103406), (298, 97160), (347, 83440), (560, 51703), (596, 48580), (694, 41720), (745, 38864), (1043, 27760), (1192, 24290), (1388, 20860), (1490, 19432), (1735, 16688), (2086, 13880), (2384, 12145), (2429, 11920), (2776, 10430), (2980, 9716), (3470, 8344), (4172, 6940), (4858, 5960), (5215, 5552)]