81674624

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 169646400

約数和(自身を除く): 87971776

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 79, 82, 128, 158, 164, 197, 316, 328, 394, 632, 656, 788, 1264, 1312, 1576, 2528, 2624, 3152, 3239, 5056, 5248, 6304, 6478, 8077, 10112, 12608, 12956, 15563, 16154, 25216, 25912, 31126, 32308, 51824, 62252, 64616, 103648, 124504, 129232, 207296, 249008, 258464, 414592, 498016, 516928, 638083, 996032, 1033856, 1276166, 1992064, 2552332, 5104664, 10209328, 20418656, 40837312, 81674624]

約数ペア:

[(1, 81674624), (2, 40837312), (4, 20418656), (8, 10209328), (16, 5104664), (32, 2552332), (41, 1992064), (64, 1276166), (79, 1033856), (82, 996032), (128, 638083), (158, 516928), (164, 498016), (197, 414592), (316, 258464), (328, 249008), (394, 207296), (632, 129232), (656, 124504), (788, 103648), (1264, 64616), (1312, 62252), (1576, 51824), (2528, 32308), (2624, 31126), (3152, 25912), (3239, 25216), (5056, 16154), (5248, 15563), (6304, 12956), (6478, 12608), (8077, 10112)]