257220240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7823}}^1$

素因数の和:7976

約数の個数: 80

約数和(自身を含む): 803305728

約数和(自身を除く): 546085488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 685, 822, 1096, 1370, 1644, 2055, 2192, 2740, 3288, 4110, 5480, 6576, 7823, 8220, 10960, 15646, 16440, 23469, 31292, 32880, 39115, 46938, 62584, 78230, 93876, 117345, 125168, 156460, 187752, 234690, 312920, 375504, 469380, 625840, 938760, 1071751, 1877520, 2143502, 3215253, 4287004, 5358755, 6430506, 8574008, 10717510, 12861012, 16076265, 17148016, 21435020, 25722024, 32152530, 42870040, 51444048, 64305060, 85740080, 128610120, 257220240]

約数ペア:

[(1, 257220240), (2, 128610120), (3, 85740080), (4, 64305060), (5, 51444048), (6, 42870040), (8, 32152530), (10, 25722024), (12, 21435020), (15, 17148016), (16, 16076265), (20, 12861012), (24, 10717510), (30, 8574008), (40, 6430506), (48, 5358755), (60, 4287004), (80, 3215253), (120, 2143502), (137, 1877520), (240, 1071751), (274, 938760), (411, 625840), (548, 469380), (685, 375504), (822, 312920), (1096, 234690), (1370, 187752), (1644, 156460), (2055, 125168), (2192, 117345), (2740, 93876), (3288, 78230), (4110, 62584), (5480, 46938), (6576, 39115), (7823, 32880), (8220, 31292), (10960, 23469), (15646, 16440)]