815705975

素因数分解:

$5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 1184448000

約数和(自身を除く): 368742025

約数列:

[1, 5, 7, 25, 35, 59, 175, 199, 295, 397, 413, 995, 1393, 1475, 1985, 2065, 2779, 4975, 6965, 9925, 10325, 11741, 13895, 23423, 34825, 58705, 69475, 79003, 82187, 117115, 163961, 293525, 395015, 410935, 553021, 585575, 819805, 1975075, 2054675, 2765105, 4099025, 4661177, 13825525, 23305885, 32628239, 116529425, 163141195, 815705975]

約数ペア:

[(1, 815705975), (5, 163141195), (7, 116529425), (25, 32628239), (35, 23305885), (59, 13825525), (175, 4661177), (199, 4099025), (295, 2765105), (397, 2054675), (413, 1975075), (995, 819805), (1393, 585575), (1475, 553021), (1985, 410935), (2065, 395015), (2779, 293525), (4975, 163961), (6965, 117115), (9925, 82187), (10325, 79003), (11741, 69475), (13895, 58705), (23423, 34825)]