1639760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:315

約数の個数: 40

約数和(自身を含む): 3868800

約数和(自身を除く): 2229040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 199, 206, 398, 412, 515, 796, 824, 995, 1030, 1592, 1648, 1990, 2060, 3184, 3980, 4120, 7960, 8240, 15920, 20497, 40994, 81988, 102485, 163976, 204970, 327952, 409940, 819880, 1639760]

約数ペア:

[(1, 1639760), (2, 819880), (4, 409940), (5, 327952), (8, 204970), (10, 163976), (16, 102485), (20, 81988), (40, 40994), (80, 20497), (103, 15920), (199, 8240), (206, 7960), (398, 4120), (412, 3980), (515, 3184), (796, 2060), (824, 1990), (995, 1648), (1030, 1592)]