128479568

素因数分解:

$2^4\times 7^3\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:641

約数の個数: 80

約数和(自身を含む): 297897600

約数和(自身を除く): 169418032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 98, 112, 164, 196, 287, 328, 343, 392, 571, 574, 656, 686, 784, 1142, 1148, 1372, 2009, 2284, 2296, 2744, 3997, 4018, 4568, 4592, 5488, 7994, 8036, 9136, 14063, 15988, 16072, 23411, 27979, 28126, 31976, 32144, 46822, 55958, 56252, 63952, 93644, 111916, 112504, 163877, 187288, 195853, 223832, 225008, 327754, 374576, 391706, 447664, 655508, 783412, 1147139, 1311016, 1566824, 2294278, 2622032, 3133648, 4588556, 8029973, 9177112, 16059946, 18354224, 32119892, 64239784, 128479568]

約数ペア:

[(1, 128479568), (2, 64239784), (4, 32119892), (7, 18354224), (8, 16059946), (14, 9177112), (16, 8029973), (28, 4588556), (41, 3133648), (49, 2622032), (56, 2294278), (82, 1566824), (98, 1311016), (112, 1147139), (164, 783412), (196, 655508), (287, 447664), (328, 391706), (343, 374576), (392, 327754), (571, 225008), (574, 223832), (656, 195853), (686, 187288), (784, 163877), (1142, 112504), (1148, 111916), (1372, 93644), (2009, 63952), (2284, 56252), (2296, 55958), (2744, 46822), (3997, 32144), (4018, 31976), (4568, 28126), (4592, 27979), (5488, 23411), (7994, 16072), (8036, 15988), (9136, 14063)]