81599640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1051}}^1$

素因数の和:1712

約数の個数: 64

約数和(自身を含む): 245410560

約数和(自身を除く): 163810920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 647, 1051, 1294, 1941, 2102, 2588, 3153, 3235, 3882, 4204, 5176, 5255, 6306, 6470, 7764, 8408, 9705, 10510, 12612, 12940, 15528, 15765, 19410, 21020, 25224, 25880, 31530, 38820, 42040, 63060, 77640, 126120, 679997, 1359994, 2039991, 2719988, 3399985, 4079982, 5439976, 6799970, 8159964, 10199955, 13599940, 16319928, 20399910, 27199880, 40799820, 81599640]

約数ペア:

[(1, 81599640), (2, 40799820), (3, 27199880), (4, 20399910), (5, 16319928), (6, 13599940), (8, 10199955), (10, 8159964), (12, 6799970), (15, 5439976), (20, 4079982), (24, 3399985), (30, 2719988), (40, 2039991), (60, 1359994), (120, 679997), (647, 126120), (1051, 77640), (1294, 63060), (1941, 42040), (2102, 38820), (2588, 31530), (3153, 25880), (3235, 25224), (3882, 21020), (4204, 19410), (5176, 15765), (5255, 15528), (6306, 12940), (6470, 12612), (7764, 10510), (8408, 9705)]