81683388

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1475

約数の個数: 72

約数和(自身を含む): 217316736

約数和(自身を除く): 135633348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 53, 62, 93, 106, 124, 159, 186, 212, 279, 318, 372, 477, 558, 636, 954, 1116, 1381, 1643, 1908, 2762, 3286, 4143, 4929, 5524, 6572, 8286, 9858, 12429, 14787, 16572, 19716, 24858, 29574, 42811, 49716, 59148, 73193, 85622, 128433, 146386, 171244, 219579, 256866, 292772, 385299, 439158, 513732, 658737, 770598, 878316, 1317474, 1541196, 2268983, 2634948, 4537966, 6806949, 9075932, 13613898, 20420847, 27227796, 40841694, 81683388]

約数ペア:

[(1, 81683388), (2, 40841694), (3, 27227796), (4, 20420847), (6, 13613898), (9, 9075932), (12, 6806949), (18, 4537966), (31, 2634948), (36, 2268983), (53, 1541196), (62, 1317474), (93, 878316), (106, 770598), (124, 658737), (159, 513732), (186, 439158), (212, 385299), (279, 292772), (318, 256866), (372, 219579), (477, 171244), (558, 146386), (636, 128433), (954, 85622), (1116, 73193), (1381, 59148), (1643, 49716), (1908, 42811), (2762, 29574), (3286, 24858), (4143, 19716), (4929, 16572), (5524, 14787), (6572, 12429), (8286, 9858)]