87075860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^2$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 199694880

約数和(自身を除く): 112619020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 73, 76, 86, 95, 146, 172, 190, 215, 292, 365, 380, 430, 730, 817, 860, 1387, 1460, 1634, 2774, 3139, 3268, 4085, 5329, 5548, 6278, 6935, 8170, 10658, 12556, 13870, 15695, 16340, 21316, 26645, 27740, 31390, 53290, 59641, 62780, 101251, 106580, 119282, 202502, 229147, 238564, 298205, 405004, 458294, 506255, 596410, 916588, 1012510, 1145735, 1192820, 2025020, 2291470, 4353793, 4582940, 8707586, 17415172, 21768965, 43537930, 87075860]

約数ペア:

[(1, 87075860), (2, 43537930), (4, 21768965), (5, 17415172), (10, 8707586), (19, 4582940), (20, 4353793), (38, 2291470), (43, 2025020), (73, 1192820), (76, 1145735), (86, 1012510), (95, 916588), (146, 596410), (172, 506255), (190, 458294), (215, 405004), (292, 298205), (365, 238564), (380, 229147), (430, 202502), (730, 119282), (817, 106580), (860, 101251), (1387, 62780), (1460, 59641), (1634, 53290), (2774, 31390), (3139, 27740), (3268, 26645), (4085, 21316), (5329, 16340), (5548, 15695), (6278, 13870), (6935, 12556), (8170, 10658)]