28213575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 52913280

約数和(自身を除く): 24699705

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 1523, 3705, 4569, 6175, 7615, 18525, 19799, 22845, 28937, 38075, 59397, 86811, 98995, 114225, 144685, 296985, 376181, 434055, 494975, 723425, 1128543, 1484925, 1880905, 2170275, 5642715, 9404525, 28213575]

約数ペア:

[(1, 28213575), (3, 9404525), (5, 5642715), (13, 2170275), (15, 1880905), (19, 1484925), (25, 1128543), (39, 723425), (57, 494975), (65, 434055), (75, 376181), (95, 296985), (195, 144685), (247, 114225), (285, 98995), (325, 86811), (475, 59397), (741, 38075), (975, 28937), (1235, 22845), (1425, 19799), (1523, 18525), (3705, 7615), (4569, 6175)]