78281216

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:669

約数の個数: 80

約数和(自身を含む): 177592800

約数和(自身を除く): 99311584

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 416, 494, 512, 608, 619, 832, 988, 1216, 1238, 1664, 1976, 2432, 2476, 3328, 3952, 4864, 4952, 6656, 7904, 8047, 9728, 9904, 11761, 15808, 16094, 19808, 23522, 31616, 32188, 39616, 47044, 63232, 64376, 79232, 94088, 126464, 128752, 152893, 158464, 188176, 257504, 305786, 316928, 376352, 515008, 611572, 752704, 1030016, 1223144, 1505408, 2060032, 2446288, 3010816, 4120064, 4892576, 6021632, 9785152, 19570304, 39140608, 78281216]

約数ペア:

[(1, 78281216), (2, 39140608), (4, 19570304), (8, 9785152), (13, 6021632), (16, 4892576), (19, 4120064), (26, 3010816), (32, 2446288), (38, 2060032), (52, 1505408), (64, 1223144), (76, 1030016), (104, 752704), (128, 611572), (152, 515008), (208, 376352), (247, 316928), (256, 305786), (304, 257504), (416, 188176), (494, 158464), (512, 152893), (608, 128752), (619, 126464), (832, 94088), (988, 79232), (1216, 64376), (1238, 63232), (1664, 47044), (1976, 39616), (2432, 32188), (2476, 31616), (3328, 23522), (3952, 19808), (4864, 16094), (4952, 15808), (6656, 11761), (7904, 9904), (8047, 9728)]