19001216

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 42982800

約数和(自身を除く): 23981584

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 601, 608, 832, 988, 1202, 1216, 1664, 1976, 2404, 2432, 3952, 4808, 7813, 7904, 9616, 11419, 15626, 15808, 19232, 22838, 31252, 31616, 38464, 45676, 62504, 76928, 91352, 125008, 148447, 182704, 250016, 296894, 365408, 500032, 593788, 730816, 1000064, 1187576, 1461632, 2375152, 4750304, 9500608, 19001216]

約数ペア:

[(1, 19001216), (2, 9500608), (4, 4750304), (8, 2375152), (13, 1461632), (16, 1187576), (19, 1000064), (26, 730816), (32, 593788), (38, 500032), (52, 365408), (64, 296894), (76, 250016), (104, 182704), (128, 148447), (152, 125008), (208, 91352), (247, 76928), (304, 62504), (416, 45676), (494, 38464), (601, 31616), (608, 31252), (832, 22838), (988, 19232), (1202, 15808), (1216, 15626), (1664, 11419), (1976, 9616), (2404, 7904), (2432, 7813), (3952, 4808)]