20176448440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1\times {\mathrm{8233}}^1$

素因数の和:8752

約数の個数: 64

約数和(自身を含む): 45779722560

約数和(自身を除く): 25603274120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 311, 394, 622, 788, 985, 1244, 1555, 1576, 1970, 2488, 3110, 3940, 6220, 7880, 8233, 12440, 16466, 32932, 41165, 61267, 65864, 82330, 122534, 164660, 245068, 306335, 329320, 490136, 612670, 1225340, 1621901, 2450680, 2560463, 3243802, 5120926, 6487604, 8109505, 10241852, 12802315, 12975208, 16219010, 20483704, 25604630, 32438020, 51209260, 64876040, 102418520, 504411211, 1008822422, 2017644844, 2522056055, 4035289688, 5044112110, 10088224220, 20176448440]

約数ペア:

[(1, 20176448440), (2, 10088224220), (4, 5044112110), (5, 4035289688), (8, 2522056055), (10, 2017644844), (20, 1008822422), (40, 504411211), (197, 102418520), (311, 64876040), (394, 51209260), (622, 32438020), (788, 25604630), (985, 20483704), (1244, 16219010), (1555, 12975208), (1576, 12802315), (1970, 10241852), (2488, 8109505), (3110, 6487604), (3940, 5120926), (6220, 3243802), (7880, 2560463), (8233, 2450680), (12440, 1621901), (16466, 1225340), (32932, 612670), (41165, 490136), (61267, 329320), (65864, 306335), (82330, 245068), (122534, 164660)]