20216976

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 56871360

約数和(自身を除く): 36654384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 179, 181, 208, 312, 358, 362, 537, 543, 624, 716, 724, 1074, 1086, 1432, 1448, 2148, 2172, 2327, 2353, 2864, 2896, 4296, 4344, 4654, 4706, 6981, 7059, 8592, 8688, 9308, 9412, 13962, 14118, 18616, 18824, 27924, 28236, 32399, 37232, 37648, 55848, 56472, 64798, 97197, 111696, 112944, 129596, 194394, 259192, 388788, 421187, 518384, 777576, 842374, 1263561, 1555152, 1684748, 2527122, 3369496, 5054244, 6738992, 10108488, 20216976]

約数ペア:

[(1, 20216976), (2, 10108488), (3, 6738992), (4, 5054244), (6, 3369496), (8, 2527122), (12, 1684748), (13, 1555152), (16, 1263561), (24, 842374), (26, 777576), (39, 518384), (48, 421187), (52, 388788), (78, 259192), (104, 194394), (156, 129596), (179, 112944), (181, 111696), (208, 97197), (312, 64798), (358, 56472), (362, 55848), (537, 37648), (543, 37232), (624, 32399), (716, 28236), (724, 27924), (1074, 18824), (1086, 18616), (1432, 14118), (1448, 13962), (2148, 9412), (2172, 9308), (2327, 8688), (2353, 8592), (2864, 7059), (2896, 6981), (4296, 4706), (4344, 4654)]