81847890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{541}}^1$

素因数の和:636

約数の個数: 72

約数和(自身を含む): 218524644

約数和(自身を除く): 136676754

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 205, 246, 369, 410, 541, 615, 738, 1082, 1230, 1623, 1681, 1845, 2705, 3246, 3362, 3690, 4869, 5043, 5410, 8115, 8405, 9738, 10086, 15129, 16230, 16810, 22181, 24345, 25215, 30258, 44362, 48690, 50430, 66543, 75645, 110905, 133086, 151290, 199629, 221810, 332715, 399258, 665430, 909421, 998145, 1818842, 1996290, 2728263, 4547105, 5456526, 8184789, 9094210, 13641315, 16369578, 27282630, 40923945, 81847890]

約数ペア:

[(1, 81847890), (2, 40923945), (3, 27282630), (5, 16369578), (6, 13641315), (9, 9094210), (10, 8184789), (15, 5456526), (18, 4547105), (30, 2728263), (41, 1996290), (45, 1818842), (82, 998145), (90, 909421), (123, 665430), (205, 399258), (246, 332715), (369, 221810), (410, 199629), (541, 151290), (615, 133086), (738, 110905), (1082, 75645), (1230, 66543), (1623, 50430), (1681, 48690), (1845, 44362), (2705, 30258), (3246, 25215), (3362, 24345), (3690, 22181), (4869, 16810), (5043, 16230), (5410, 15129), (8115, 10086), (8405, 9738)]