28718025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2879}}^1$

素因数の和:2918

約数の個数: 48

約数和(自身を含む): 57139200

約数和(自身を除く): 28421175

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 2879, 3325, 8637, 9975, 14395, 20153, 43185, 54701, 60459, 71975, 100765, 164103, 215925, 273505, 302295, 382907, 503825, 820515, 1148721, 1367525, 1511475, 1914535, 4102575, 5743605, 9572675, 28718025]

約数ペア:

[(1, 28718025), (3, 9572675), (5, 5743605), (7, 4102575), (15, 1914535), (19, 1511475), (21, 1367525), (25, 1148721), (35, 820515), (57, 503825), (75, 382907), (95, 302295), (105, 273505), (133, 215925), (175, 164103), (285, 100765), (399, 71975), (475, 60459), (525, 54701), (665, 43185), (1425, 20153), (1995, 14395), (2879, 9975), (3325, 8637)]