71891505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{947}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 143155584

約数和(自身を除く): 71264079

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 241, 315, 723, 947, 1205, 1687, 2169, 2841, 3615, 4735, 5061, 6629, 8435, 8523, 10845, 14205, 15183, 19887, 25305, 33145, 42615, 59661, 75915, 99435, 228227, 298305, 684681, 1141135, 1597589, 2054043, 3423405, 4792767, 7987945, 10270215, 14378301, 23963835, 71891505]

約数ペア:

[(1, 71891505), (3, 23963835), (5, 14378301), (7, 10270215), (9, 7987945), (15, 4792767), (21, 3423405), (35, 2054043), (45, 1597589), (63, 1141135), (105, 684681), (241, 298305), (315, 228227), (723, 99435), (947, 75915), (1205, 59661), (1687, 42615), (2169, 33145), (2841, 25305), (3615, 19887), (4735, 15183), (5061, 14205), (6629, 10845), (8435, 8523)]