15380025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 27498240

約数和(自身を除く): 12118215

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 129, 215, 251, 285, 475, 645, 753, 817, 1075, 1255, 1425, 2451, 3225, 3765, 4085, 4769, 6275, 10793, 12255, 14307, 18825, 20425, 23845, 32379, 53965, 61275, 71535, 119225, 161895, 205067, 269825, 357675, 615201, 809475, 1025335, 3076005, 5126675, 15380025]

約数ペア:

[(1, 15380025), (3, 5126675), (5, 3076005), (15, 1025335), (19, 809475), (25, 615201), (43, 357675), (57, 269825), (75, 205067), (95, 161895), (129, 119225), (215, 71535), (251, 61275), (285, 53965), (475, 32379), (645, 23845), (753, 20425), (817, 18825), (1075, 14307), (1255, 12255), (1425, 10793), (2451, 6275), (3225, 4769), (3765, 4085)]