18613840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:836

約数の個数: 80

約数和(自身を含む): 50675328

約数和(自身を除く): 32061488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 773, 860, 1204, 1505, 1546, 1720, 2408, 3010, 3092, 3440, 3865, 4816, 5411, 6020, 6184, 7730, 10822, 12040, 12368, 15460, 21644, 24080, 27055, 30920, 33239, 43288, 54110, 61840, 66478, 86576, 108220, 132956, 166195, 216440, 232673, 265912, 332390, 432880, 465346, 531824, 664780, 930692, 1163365, 1329560, 1861384, 2326730, 2659120, 3722768, 4653460, 9306920, 18613840]

約数ペア:

[(1, 18613840), (2, 9306920), (4, 4653460), (5, 3722768), (7, 2659120), (8, 2326730), (10, 1861384), (14, 1329560), (16, 1163365), (20, 930692), (28, 664780), (35, 531824), (40, 465346), (43, 432880), (56, 332390), (70, 265912), (80, 232673), (86, 216440), (112, 166195), (140, 132956), (172, 108220), (215, 86576), (280, 66478), (301, 61840), (344, 54110), (430, 43288), (560, 33239), (602, 30920), (688, 27055), (773, 24080), (860, 21644), (1204, 15460), (1505, 12368), (1546, 12040), (1720, 10822), (2408, 7730), (3010, 6184), (3092, 6020), (3440, 5411), (3865, 4816)]