78555776

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2777}}^1$

素因数の和:2821

約数の個数: 64

約数和(自身を含む): 178514280

約数和(自身を除く): 99958504

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1664, 1768, 2176, 2777, 3536, 5554, 7072, 11108, 14144, 22216, 28288, 36101, 44432, 47209, 72202, 88864, 94418, 144404, 177728, 188836, 288808, 355456, 377672, 577616, 613717, 755344, 1155232, 1227434, 1510688, 2310464, 2454868, 3021376, 4620928, 4909736, 6042752, 9819472, 19638944, 39277888, 78555776]

約数ペア:

[(1, 78555776), (2, 39277888), (4, 19638944), (8, 9819472), (13, 6042752), (16, 4909736), (17, 4620928), (26, 3021376), (32, 2454868), (34, 2310464), (52, 1510688), (64, 1227434), (68, 1155232), (104, 755344), (128, 613717), (136, 577616), (208, 377672), (221, 355456), (272, 288808), (416, 188836), (442, 177728), (544, 144404), (832, 94418), (884, 88864), (1088, 72202), (1664, 47209), (1768, 44432), (2176, 36101), (2777, 28288), (3536, 22216), (5554, 14144), (7072, 11108)]