28136290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 63705600

約数和(自身を除く): 35569310

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 455, 490, 631, 637, 686, 910, 1262, 1274, 1715, 3155, 3185, 3430, 4417, 4459, 6310, 6370, 8203, 8834, 8918, 16406, 22085, 22295, 30919, 41015, 44170, 44590, 57421, 61838, 82030, 114842, 154595, 216433, 287105, 309190, 401947, 432866, 574210, 803894, 1082165, 2009735, 2164330, 2813629, 4019470, 5627258, 14068145, 28136290]

約数ペア:

[(1, 28136290), (2, 14068145), (5, 5627258), (7, 4019470), (10, 2813629), (13, 2164330), (14, 2009735), (26, 1082165), (35, 803894), (49, 574210), (65, 432866), (70, 401947), (91, 309190), (98, 287105), (130, 216433), (182, 154595), (245, 114842), (343, 82030), (455, 61838), (490, 57421), (631, 44590), (637, 44170), (686, 41015), (910, 30919), (1262, 22295), (1274, 22085), (1715, 16406), (3155, 8918), (3185, 8834), (3430, 8203), (4417, 6370), (4459, 6310)]