78840825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{571}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 149799936

約数和(自身を除く): 70959111

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 263, 525, 571, 789, 1315, 1713, 1841, 2855, 3945, 3997, 5523, 6575, 8565, 9205, 11991, 14275, 19725, 19985, 27615, 42825, 46025, 59955, 99925, 138075, 150173, 299775, 450519, 750865, 1051211, 2252595, 3153633, 3754325, 5256055, 11262975, 15768165, 26280275, 78840825]

約数ペア:

[(1, 78840825), (3, 26280275), (5, 15768165), (7, 11262975), (15, 5256055), (21, 3754325), (25, 3153633), (35, 2252595), (75, 1051211), (105, 750865), (175, 450519), (263, 299775), (525, 150173), (571, 138075), (789, 99925), (1315, 59955), (1713, 46025), (1841, 42825), (2855, 27615), (3945, 19985), (3997, 19725), (5523, 14275), (6575, 11991), (8565, 9205)]