247355440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1030

約数の個数: 80

約数和(自身を含む): 612282240

約数和(自身を除く): 364926800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 239, 272, 340, 478, 680, 761, 956, 1195, 1360, 1522, 1912, 2390, 3044, 3805, 3824, 4063, 4780, 6088, 7610, 8126, 9560, 12176, 12937, 15220, 16252, 19120, 20315, 25874, 30440, 32504, 40630, 51748, 60880, 64685, 65008, 81260, 103496, 129370, 162520, 181879, 206992, 258740, 325040, 363758, 517480, 727516, 909395, 1034960, 1455032, 1818790, 2910064, 3091943, 3637580, 6183886, 7275160, 12367772, 14550320, 15459715, 24735544, 30919430, 49471088, 61838860, 123677720, 247355440]

約数ペア:

[(1, 247355440), (2, 123677720), (4, 61838860), (5, 49471088), (8, 30919430), (10, 24735544), (16, 15459715), (17, 14550320), (20, 12367772), (34, 7275160), (40, 6183886), (68, 3637580), (80, 3091943), (85, 2910064), (136, 1818790), (170, 1455032), (239, 1034960), (272, 909395), (340, 727516), (478, 517480), (680, 363758), (761, 325040), (956, 258740), (1195, 206992), (1360, 181879), (1522, 162520), (1912, 129370), (2390, 103496), (3044, 81260), (3805, 65008), (3824, 64685), (4063, 60880), (4780, 51748), (6088, 40630), (7610, 32504), (8126, 30440), (9560, 25874), (12176, 20315), (12937, 19120), (15220, 16252)]