81219256

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 170035200

約数和(自身を除く): 88815944

約数列:

[1, 2, 4, 8, 23, 29, 31, 46, 58, 62, 92, 116, 124, 184, 232, 248, 491, 667, 713, 899, 982, 1334, 1426, 1798, 1964, 2668, 2852, 3596, 3928, 5336, 5704, 7192, 11293, 14239, 15221, 20677, 22586, 28478, 30442, 41354, 45172, 56956, 60884, 82708, 90344, 113912, 121768, 165416, 327497, 350083, 441409, 654994, 700166, 882818, 1309988, 1400332, 1765636, 2619976, 2800664, 3531272, 10152407, 20304814, 40609628, 81219256]

約数ペア:

[(1, 81219256), (2, 40609628), (4, 20304814), (8, 10152407), (23, 3531272), (29, 2800664), (31, 2619976), (46, 1765636), (58, 1400332), (62, 1309988), (92, 882818), (116, 700166), (124, 654994), (184, 441409), (232, 350083), (248, 327497), (491, 165416), (667, 121768), (713, 113912), (899, 90344), (982, 82708), (1334, 60884), (1426, 56956), (1798, 45172), (1964, 41354), (2668, 30442), (2852, 28478), (3596, 22586), (3928, 20677), (5336, 15221), (5704, 14239), (7192, 11293)]