316291840

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2267}}^1$

素因数の和:2397

約数の個数: 72

約数和(自身を含む): 764905680

約数和(自身を除く): 448613840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 872, 1090, 1280, 1744, 2180, 2267, 3488, 4360, 4534, 6976, 8720, 9068, 11335, 13952, 17440, 18136, 22670, 27904, 34880, 36272, 45340, 69760, 72544, 90680, 139520, 145088, 181360, 247103, 290176, 362720, 494206, 580352, 725440, 988412, 1235515, 1450880, 1976824, 2471030, 2901760, 3953648, 4942060, 7907296, 9884120, 15814592, 19768240, 31629184, 39536480, 63258368, 79072960, 158145920, 316291840]

約数ペア:

[(1, 316291840), (2, 158145920), (4, 79072960), (5, 63258368), (8, 39536480), (10, 31629184), (16, 19768240), (20, 15814592), (32, 9884120), (40, 7907296), (64, 4942060), (80, 3953648), (109, 2901760), (128, 2471030), (160, 1976824), (218, 1450880), (256, 1235515), (320, 988412), (436, 725440), (545, 580352), (640, 494206), (872, 362720), (1090, 290176), (1280, 247103), (1744, 181360), (2180, 145088), (2267, 139520), (3488, 90680), (4360, 72544), (4534, 69760), (6976, 45340), (8720, 36272), (9068, 34880), (11335, 27904), (13952, 22670), (17440, 18136)]