42380000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:206

約数の個数: 120

約数和(自身を含む): 112970088

約数和(自身を除く): 70590088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 163, 200, 208, 250, 260, 325, 326, 400, 416, 500, 520, 625, 650, 652, 800, 815, 1000, 1040, 1250, 1300, 1304, 1625, 1630, 2000, 2080, 2119, 2500, 2600, 2608, 3250, 3260, 4000, 4075, 4238, 5000, 5200, 5216, 6500, 6520, 8125, 8150, 8476, 10000, 10400, 10595, 13000, 13040, 16250, 16300, 16952, 20000, 20375, 21190, 26000, 26080, 32500, 32600, 33904, 40750, 42380, 52000, 52975, 65000, 65200, 67808, 81500, 84760, 101875, 105950, 130000, 130400, 163000, 169520, 203750, 211900, 260000, 264875, 326000, 339040, 407500, 423800, 529750, 652000, 815000, 847600, 1059500, 1324375, 1630000, 1695200, 2119000, 2648750, 3260000, 4238000, 5297500, 8476000, 10595000, 21190000, 42380000]

約数ペア:

[(1, 42380000), (2, 21190000), (4, 10595000), (5, 8476000), (8, 5297500), (10, 4238000), (13, 3260000), (16, 2648750), (20, 2119000), (25, 1695200), (26, 1630000), (32, 1324375), (40, 1059500), (50, 847600), (52, 815000), (65, 652000), (80, 529750), (100, 423800), (104, 407500), (125, 339040), (130, 326000), (160, 264875), (163, 260000), (200, 211900), (208, 203750), (250, 169520), (260, 163000), (325, 130400), (326, 130000), (400, 105950), (416, 101875), (500, 84760), (520, 81500), (625, 67808), (650, 65200), (652, 65000), (800, 52975), (815, 52000), (1000, 42380), (1040, 40750), (1250, 33904), (1300, 32600), (1304, 32500), (1625, 26080), (1630, 26000), (2000, 21190), (2080, 20375), (2119, 20000), (2500, 16952), (2600, 16300), (2608, 16250), (3250, 13040), (3260, 13000), (4000, 10595), (4075, 10400), (4238, 10000), (5000, 8476), (5200, 8150), (5216, 8125), (6500, 6520)]