219023420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142223}}^1$

素因数の和:142250

約数の個数: 48

約数和(自身を含む): 573447168

約数和(自身を除く): 354423748

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 142223, 284446, 568892, 711115, 995561, 1422230, 1564453, 1991122, 2844460, 3128906, 3982244, 4977805, 6257812, 7822265, 9955610, 10951171, 15644530, 19911220, 21902342, 31289060, 43804684, 54755855, 109511710, 219023420]

約数ペア:

[(1, 219023420), (2, 109511710), (4, 54755855), (5, 43804684), (7, 31289060), (10, 21902342), (11, 19911220), (14, 15644530), (20, 10951171), (22, 9955610), (28, 7822265), (35, 6257812), (44, 4977805), (55, 3982244), (70, 3128906), (77, 2844460), (110, 1991122), (140, 1564453), (154, 1422230), (220, 995561), (308, 711115), (385, 568892), (770, 284446), (1540, 142223)]