998856880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{77551}}^1$

素因数の和:77594

約数の個数: 80

約数和(自身を含む): 2769537024

約数和(自身を除く): 1770680144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 77551, 155102, 310204, 387755, 542857, 620408, 775510, 1085714, 1240816, 1551020, 1783673, 2171428, 2714285, 3102040, 3567346, 4342856, 5428570, 6204080, 7134692, 8685712, 8918365, 10857140, 12485711, 14269384, 17836730, 21714280, 24971422, 28538768, 35673460, 43428560, 49942844, 62428555, 71346920, 99885688, 124857110, 142693840, 199771376, 249714220, 499428440, 998856880]

約数ペア:

[(1, 998856880), (2, 499428440), (4, 249714220), (5, 199771376), (7, 142693840), (8, 124857110), (10, 99885688), (14, 71346920), (16, 62428555), (20, 49942844), (23, 43428560), (28, 35673460), (35, 28538768), (40, 24971422), (46, 21714280), (56, 17836730), (70, 14269384), (80, 12485711), (92, 10857140), (112, 8918365), (115, 8685712), (140, 7134692), (161, 6204080), (184, 5428570), (230, 4342856), (280, 3567346), (322, 3102040), (368, 2714285), (460, 2171428), (560, 1783673), (644, 1551020), (805, 1240816), (920, 1085714), (1288, 775510), (1610, 620408), (1840, 542857), (2576, 387755), (3220, 310204), (6440, 155102), (12880, 77551)]