16215920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1302

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 28781200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1259, 1288, 1610, 1840, 2518, 2576, 3220, 5036, 6295, 6440, 8813, 10072, 12590, 12880, 17626, 20144, 25180, 28957, 35252, 44065, 50360, 57914, 70504, 88130, 100720, 115828, 141008, 144785, 176260, 202699, 231656, 289570, 352520, 405398, 463312, 579140, 705040, 810796, 1013495, 1158280, 1621592, 2026990, 2316560, 3243184, 4053980, 8107960, 16215920]

約数ペア:

[(1, 16215920), (2, 8107960), (4, 4053980), (5, 3243184), (7, 2316560), (8, 2026990), (10, 1621592), (14, 1158280), (16, 1013495), (20, 810796), (23, 705040), (28, 579140), (35, 463312), (40, 405398), (46, 352520), (56, 289570), (70, 231656), (80, 202699), (92, 176260), (112, 144785), (115, 141008), (140, 115828), (161, 100720), (184, 88130), (230, 70504), (280, 57914), (322, 50360), (368, 44065), (460, 35252), (560, 28957), (644, 25180), (805, 20144), (920, 17626), (1259, 12880), (1288, 12590), (1610, 10072), (1840, 8813), (2518, 6440), (2576, 6295), (3220, 5036)]