21766280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 52099200

約数和(自身を除く): 30332920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 401, 460, 472, 590, 802, 920, 1180, 1357, 1604, 2005, 2360, 2714, 3208, 4010, 5428, 6785, 8020, 9223, 10856, 13570, 16040, 18446, 23659, 27140, 36892, 46115, 47318, 54280, 73784, 92230, 94636, 118295, 184460, 189272, 236590, 368920, 473180, 544157, 946360, 1088314, 2176628, 2720785, 4353256, 5441570, 10883140, 21766280]

約数ペア:

[(1, 21766280), (2, 10883140), (4, 5441570), (5, 4353256), (8, 2720785), (10, 2176628), (20, 1088314), (23, 946360), (40, 544157), (46, 473180), (59, 368920), (92, 236590), (115, 189272), (118, 184460), (184, 118295), (230, 94636), (236, 92230), (295, 73784), (401, 54280), (460, 47318), (472, 46115), (590, 36892), (802, 27140), (920, 23659), (1180, 18446), (1357, 16040), (1604, 13570), (2005, 10856), (2360, 9223), (2714, 8020), (3208, 6785), (4010, 5428)]