19937952

素因数分解:

$2^5\times 3^2\times {\mathrm{107}}^1\times {\mathrm{647}}^1$

素因数の和:770

約数の個数: 72

約数和(自身を含む): 57316896

約数和(自身を除く): 37378944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 107, 144, 214, 288, 321, 428, 642, 647, 856, 963, 1284, 1294, 1712, 1926, 1941, 2568, 2588, 3424, 3852, 3882, 5136, 5176, 5823, 7704, 7764, 10272, 10352, 11646, 15408, 15528, 20704, 23292, 30816, 31056, 46584, 62112, 69229, 93168, 138458, 186336, 207687, 276916, 415374, 553832, 623061, 830748, 1107664, 1246122, 1661496, 2215328, 2492244, 3322992, 4984488, 6645984, 9968976, 19937952]

約数ペア:

[(1, 19937952), (2, 9968976), (3, 6645984), (4, 4984488), (6, 3322992), (8, 2492244), (9, 2215328), (12, 1661496), (16, 1246122), (18, 1107664), (24, 830748), (32, 623061), (36, 553832), (48, 415374), (72, 276916), (96, 207687), (107, 186336), (144, 138458), (214, 93168), (288, 69229), (321, 62112), (428, 46584), (642, 31056), (647, 30816), (856, 23292), (963, 20704), (1284, 15528), (1294, 15408), (1712, 11646), (1926, 10352), (1941, 10272), (2568, 7764), (2588, 7704), (3424, 5823), (3852, 5176), (3882, 5136)]