81371264

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 177072000

約数和(自身を除く): 95700736

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 79, 104, 128, 158, 208, 316, 416, 619, 632, 832, 1027, 1238, 1264, 1664, 2054, 2476, 2528, 4108, 4952, 5056, 8047, 8216, 9904, 10112, 16094, 16432, 19808, 32188, 32864, 39616, 48901, 64376, 65728, 79232, 97802, 128752, 131456, 195604, 257504, 391208, 515008, 635713, 782416, 1030016, 1271426, 1564832, 2542852, 3129664, 5085704, 6259328, 10171408, 20342816, 40685632, 81371264]

約数ペア:

[(1, 81371264), (2, 40685632), (4, 20342816), (8, 10171408), (13, 6259328), (16, 5085704), (26, 3129664), (32, 2542852), (52, 1564832), (64, 1271426), (79, 1030016), (104, 782416), (128, 635713), (158, 515008), (208, 391208), (316, 257504), (416, 195604), (619, 131456), (632, 128752), (832, 97802), (1027, 79232), (1238, 65728), (1264, 64376), (1664, 48901), (2054, 39616), (2476, 32864), (2528, 32188), (4108, 19808), (4952, 16432), (5056, 16094), (8047, 10112), (8216, 9904)]