19899152

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 48330240

約数和(自身を除く): 28431088

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 79, 91, 104, 112, 158, 173, 182, 208, 316, 346, 364, 553, 632, 692, 728, 1027, 1106, 1211, 1264, 1384, 1456, 2054, 2212, 2249, 2422, 2768, 4108, 4424, 4498, 4844, 7189, 8216, 8848, 8996, 9688, 13667, 14378, 15743, 16432, 17992, 19376, 27334, 28756, 31486, 35984, 54668, 57512, 62972, 95669, 109336, 115024, 125944, 177671, 191338, 218672, 251888, 355342, 382676, 710684, 765352, 1243697, 1421368, 1530704, 2487394, 2842736, 4974788, 9949576, 19899152]

約数ペア:

[(1, 19899152), (2, 9949576), (4, 4974788), (7, 2842736), (8, 2487394), (13, 1530704), (14, 1421368), (16, 1243697), (26, 765352), (28, 710684), (52, 382676), (56, 355342), (79, 251888), (91, 218672), (104, 191338), (112, 177671), (158, 125944), (173, 115024), (182, 109336), (208, 95669), (316, 62972), (346, 57512), (364, 54668), (553, 35984), (632, 31486), (692, 28756), (728, 27334), (1027, 19376), (1106, 17992), (1211, 16432), (1264, 15743), (1384, 14378), (1456, 13667), (2054, 9688), (2212, 8996), (2249, 8848), (2422, 8216), (2768, 7189), (4108, 4844), (4424, 4498)]