261631584

素因数分解:

$2^5\times 3^2\times {\mathrm{229}}^1\times {\mathrm{3967}}^1$

素因数の和:4212

約数の個数: 72

約数和(自身を含む): 747452160

約数和(自身を除く): 485820576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 229, 288, 458, 687, 916, 1374, 1832, 2061, 2748, 3664, 3967, 4122, 5496, 7328, 7934, 8244, 10992, 11901, 15868, 16488, 21984, 23802, 31736, 32976, 35703, 47604, 63472, 65952, 71406, 95208, 126944, 142812, 190416, 285624, 380832, 571248, 908443, 1142496, 1816886, 2725329, 3633772, 5450658, 7267544, 8175987, 10901316, 14535088, 16351974, 21802632, 29070176, 32703948, 43605264, 65407896, 87210528, 130815792, 261631584]

約数ペア:

[(1, 261631584), (2, 130815792), (3, 87210528), (4, 65407896), (6, 43605264), (8, 32703948), (9, 29070176), (12, 21802632), (16, 16351974), (18, 14535088), (24, 10901316), (32, 8175987), (36, 7267544), (48, 5450658), (72, 3633772), (96, 2725329), (144, 1816886), (229, 1142496), (288, 908443), (458, 571248), (687, 380832), (916, 285624), (1374, 190416), (1832, 142812), (2061, 126944), (2748, 95208), (3664, 71406), (3967, 65952), (4122, 63472), (5496, 47604), (7328, 35703), (7934, 32976), (8244, 31736), (10992, 23802), (11901, 21984), (15868, 16488)]