87999920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:582

約数の個数: 80

約数和(自身を含む): 214673760

約数和(自身を除く): 126673840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 83, 116, 145, 166, 232, 290, 332, 415, 457, 464, 580, 664, 830, 914, 1160, 1328, 1660, 1828, 2285, 2320, 2407, 3320, 3656, 4570, 4814, 6640, 7312, 9140, 9628, 12035, 13253, 18280, 19256, 24070, 26506, 36560, 37931, 38512, 48140, 53012, 66265, 75862, 96280, 106024, 132530, 151724, 189655, 192560, 212048, 265060, 303448, 379310, 530120, 606896, 758620, 1060240, 1099999, 1517240, 2199998, 3034480, 4399996, 5499995, 8799992, 10999990, 17599984, 21999980, 43999960, 87999920]

約数ペア:

[(1, 87999920), (2, 43999960), (4, 21999980), (5, 17599984), (8, 10999990), (10, 8799992), (16, 5499995), (20, 4399996), (29, 3034480), (40, 2199998), (58, 1517240), (80, 1099999), (83, 1060240), (116, 758620), (145, 606896), (166, 530120), (232, 379310), (290, 303448), (332, 265060), (415, 212048), (457, 192560), (464, 189655), (580, 151724), (664, 132530), (830, 106024), (914, 96280), (1160, 75862), (1328, 66265), (1660, 53012), (1828, 48140), (2285, 38512), (2320, 37931), (2407, 36560), (3320, 26506), (3656, 24070), (4570, 19256), (4814, 18280), (6640, 13253), (7312, 12035), (9140, 9628)]