81330080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:730

約数の個数: 96

約数和(自身を含む): 210642768

約数和(自身を除く): 129312688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 65, 80, 104, 122, 130, 160, 208, 244, 260, 305, 416, 488, 520, 610, 641, 793, 976, 1040, 1220, 1282, 1586, 1952, 2080, 2440, 2564, 3172, 3205, 3965, 4880, 5128, 6344, 6410, 7930, 8333, 9760, 10256, 12688, 12820, 15860, 16666, 20512, 25376, 25640, 31720, 33332, 39101, 41665, 51280, 63440, 66664, 78202, 83330, 102560, 126880, 133328, 156404, 166660, 195505, 266656, 312808, 333320, 391010, 508313, 625616, 666640, 782020, 1016626, 1251232, 1333280, 1564040, 2033252, 2541565, 3128080, 4066504, 5083130, 6256160, 8133008, 10166260, 16266016, 20332520, 40665040, 81330080]

約数ペア:

[(1, 81330080), (2, 40665040), (4, 20332520), (5, 16266016), (8, 10166260), (10, 8133008), (13, 6256160), (16, 5083130), (20, 4066504), (26, 3128080), (32, 2541565), (40, 2033252), (52, 1564040), (61, 1333280), (65, 1251232), (80, 1016626), (104, 782020), (122, 666640), (130, 625616), (160, 508313), (208, 391010), (244, 333320), (260, 312808), (305, 266656), (416, 195505), (488, 166660), (520, 156404), (610, 133328), (641, 126880), (793, 102560), (976, 83330), (1040, 78202), (1220, 66664), (1282, 63440), (1586, 51280), (1952, 41665), (2080, 39101), (2440, 33332), (2564, 31720), (3172, 25640), (3205, 25376), (3965, 20512), (4880, 16666), (5128, 15860), (6344, 12820), (6410, 12688), (7930, 10256), (8333, 9760)]