20761930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 25271990

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 73, 85, 119, 146, 170, 238, 239, 365, 478, 511, 595, 730, 1022, 1190, 1195, 1241, 1673, 2390, 2482, 2555, 3346, 4063, 5110, 6205, 8126, 8365, 8687, 12410, 16730, 17374, 17447, 20315, 28441, 34894, 40630, 43435, 56882, 86870, 87235, 122129, 142205, 174470, 244258, 284410, 296599, 593198, 610645, 1221290, 1482995, 2076193, 2965990, 4152386, 10380965, 20761930]

約数ペア:

[(1, 20761930), (2, 10380965), (5, 4152386), (7, 2965990), (10, 2076193), (14, 1482995), (17, 1221290), (34, 610645), (35, 593198), (70, 296599), (73, 284410), (85, 244258), (119, 174470), (146, 142205), (170, 122129), (238, 87235), (239, 86870), (365, 56882), (478, 43435), (511, 40630), (595, 34894), (730, 28441), (1022, 20315), (1190, 17447), (1195, 17374), (1241, 16730), (1673, 12410), (2390, 8687), (2482, 8365), (2555, 8126), (3346, 6205), (4063, 5110)]