81699800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 237328560

約数和(自身を除く): 155628760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 67, 70, 91, 100, 104, 130, 134, 140, 175, 182, 200, 260, 268, 280, 325, 335, 350, 364, 455, 469, 520, 536, 650, 670, 700, 728, 871, 910, 938, 1300, 1340, 1400, 1675, 1742, 1820, 1876, 2275, 2345, 2600, 2680, 3350, 3484, 3640, 3752, 4355, 4489, 4550, 4690, 6097, 6700, 6968, 8710, 8978, 9100, 9380, 11725, 12194, 13400, 17420, 17956, 18200, 18760, 21775, 22445, 23450, 24388, 30485, 31423, 34840, 35912, 43550, 44890, 46900, 48776, 58357, 60970, 62846, 87100, 89780, 93800, 112225, 116714, 121940, 125692, 152425, 157115, 174200, 179560, 224450, 233428, 243880, 251384, 291785, 304850, 314230, 408499, 448900, 466856, 583570, 609700, 628460, 785575, 816998, 897800, 1167140, 1219400, 1256920, 1458925, 1571150, 1633996, 2042495, 2334280, 2917850, 3142300, 3267992, 4084990, 5835700, 6284600, 8169980, 10212475, 11671400, 16339960, 20424950, 40849900, 81699800]

約数ペア:

[(1, 81699800), (2, 40849900), (4, 20424950), (5, 16339960), (7, 11671400), (8, 10212475), (10, 8169980), (13, 6284600), (14, 5835700), (20, 4084990), (25, 3267992), (26, 3142300), (28, 2917850), (35, 2334280), (40, 2042495), (50, 1633996), (52, 1571150), (56, 1458925), (65, 1256920), (67, 1219400), (70, 1167140), (91, 897800), (100, 816998), (104, 785575), (130, 628460), (134, 609700), (140, 583570), (175, 466856), (182, 448900), (200, 408499), (260, 314230), (268, 304850), (280, 291785), (325, 251384), (335, 243880), (350, 233428), (364, 224450), (455, 179560), (469, 174200), (520, 157115), (536, 152425), (650, 125692), (670, 121940), (700, 116714), (728, 112225), (871, 93800), (910, 89780), (938, 87100), (1300, 62846), (1340, 60970), (1400, 58357), (1675, 48776), (1742, 46900), (1820, 44890), (1876, 43550), (2275, 35912), (2345, 34840), (2600, 31423), (2680, 30485), (3350, 24388), (3484, 23450), (3640, 22445), (3752, 21775), (4355, 18760), (4489, 18200), (4550, 17956), (4690, 17420), (6097, 13400), (6700, 12194), (6968, 11725), (8710, 9380), (8978, 9100)]