81581976

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{161869}}^1$

素因数の和:161888

約数の個数: 48

約数和(自身を含む): 252517200

約数和(自身を除く): 170935224

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 161869, 323738, 485607, 647476, 971214, 1133083, 1294952, 1456821, 1942428, 2266166, 2913642, 3399249, 3884856, 4532332, 5827284, 6798498, 9064664, 10197747, 11654568, 13596996, 20395494, 27193992, 40790988, 81581976]

約数ペア:

[(1, 81581976), (2, 40790988), (3, 27193992), (4, 20395494), (6, 13596996), (7, 11654568), (8, 10197747), (9, 9064664), (12, 6798498), (14, 5827284), (18, 4532332), (21, 3884856), (24, 3399249), (28, 2913642), (36, 2266166), (42, 1942428), (56, 1456821), (63, 1294952), (72, 1133083), (84, 971214), (126, 647476), (168, 485607), (252, 323738), (504, 161869)]