2486374900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{491}}^1\times {\mathrm{641}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 5483399040

約数和(自身を除く): 2997024140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 491, 641, 790, 982, 1282, 1580, 1964, 1975, 2455, 2564, 3205, 3950, 4910, 6410, 7900, 9820, 12275, 12820, 16025, 24550, 32050, 38789, 49100, 50639, 64100, 77578, 101278, 155156, 193945, 202556, 253195, 314731, 387890, 506390, 629462, 775780, 969725, 1012780, 1258924, 1265975, 1573655, 1939450, 2531950, 3147310, 3878900, 5063900, 6294620, 7868275, 15736550, 24863749, 31473100, 49727498, 99454996, 124318745, 248637490, 497274980, 621593725, 1243187450, 2486374900]

約数ペア:

[(1, 2486374900), (2, 1243187450), (4, 621593725), (5, 497274980), (10, 248637490), (20, 124318745), (25, 99454996), (50, 49727498), (79, 31473100), (100, 24863749), (158, 15736550), (316, 7868275), (395, 6294620), (491, 5063900), (641, 3878900), (790, 3147310), (982, 2531950), (1282, 1939450), (1580, 1573655), (1964, 1265975), (1975, 1258924), (2455, 1012780), (2564, 969725), (3205, 775780), (3950, 629462), (4910, 506390), (6410, 387890), (7900, 314731), (9820, 253195), (12275, 202556), (12820, 193945), (16025, 155156), (24550, 101278), (32050, 77578), (38789, 64100), (49100, 50639)]