164913280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:438

約数の個数: 128

約数和(自身を含む): 455621760

約数和(自身を除く): 290708480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 131, 140, 160, 224, 262, 280, 281, 320, 448, 524, 560, 562, 640, 655, 896, 917, 1048, 1120, 1124, 1310, 1405, 1834, 1967, 2096, 2240, 2248, 2620, 2810, 3668, 3934, 4192, 4480, 4496, 4585, 5240, 5620, 7336, 7868, 8384, 8992, 9170, 9835, 10480, 11240, 14672, 15736, 16768, 17984, 18340, 19670, 20960, 22480, 29344, 31472, 35968, 36680, 36811, 39340, 41920, 44960, 58688, 62944, 73360, 73622, 78680, 83840, 89920, 117376, 125888, 146720, 147244, 157360, 179840, 184055, 251776, 257677, 293440, 294488, 314720, 368110, 515354, 586880, 588976, 629440, 736220, 1030708, 1177952, 1258880, 1288385, 1472440, 2061416, 2355904, 2576770, 2944880, 4122832, 4711808, 5153540, 5889760, 8245664, 10307080, 11779520, 16491328, 20614160, 23559040, 32982656, 41228320, 82456640, 164913280]

約数ペア:

[(1, 164913280), (2, 82456640), (4, 41228320), (5, 32982656), (7, 23559040), (8, 20614160), (10, 16491328), (14, 11779520), (16, 10307080), (20, 8245664), (28, 5889760), (32, 5153540), (35, 4711808), (40, 4122832), (56, 2944880), (64, 2576770), (70, 2355904), (80, 2061416), (112, 1472440), (128, 1288385), (131, 1258880), (140, 1177952), (160, 1030708), (224, 736220), (262, 629440), (280, 588976), (281, 586880), (320, 515354), (448, 368110), (524, 314720), (560, 294488), (562, 293440), (640, 257677), (655, 251776), (896, 184055), (917, 179840), (1048, 157360), (1120, 147244), (1124, 146720), (1310, 125888), (1405, 117376), (1834, 89920), (1967, 83840), (2096, 78680), (2240, 73622), (2248, 73360), (2620, 62944), (2810, 58688), (3668, 44960), (3934, 41920), (4192, 39340), (4480, 36811), (4496, 36680), (4585, 35968), (5240, 31472), (5620, 29344), (7336, 22480), (7868, 20960), (8384, 19670), (8992, 18340), (9170, 17984), (9835, 16768), (10480, 15736), (11240, 14672)]