219870010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{1999}}^1$

素因数の和:2670

約数の個数: 32

約数和(自身を含む): 419904000

約数和(自身を除く): 200033990

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 647, 1294, 1999, 3235, 3998, 6470, 9995, 10999, 19990, 21998, 33983, 54995, 67966, 109990, 169915, 339830, 1293353, 2586706, 6466765, 12933530, 21987001, 43974002, 109935005, 219870010]

約数ペア:

[(1, 219870010), (2, 109935005), (5, 43974002), (10, 21987001), (17, 12933530), (34, 6466765), (85, 2586706), (170, 1293353), (647, 339830), (1294, 169915), (1999, 109990), (3235, 67966), (3998, 54995), (6470, 33983), (9995, 21998), (10999, 19990)]