20130950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 43256160

約数和(自身を除く): 23125210

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 113, 175, 226, 350, 509, 565, 791, 1018, 1130, 1582, 2545, 2825, 3563, 3955, 5090, 5650, 7126, 7910, 12725, 17815, 19775, 25450, 35630, 39550, 57517, 89075, 115034, 178150, 287585, 402619, 575170, 805238, 1437925, 2013095, 2875850, 4026190, 10065475, 20130950]

約数ペア:

[(1, 20130950), (2, 10065475), (5, 4026190), (7, 2875850), (10, 2013095), (14, 1437925), (25, 805238), (35, 575170), (50, 402619), (70, 287585), (113, 178150), (175, 115034), (226, 89075), (350, 57517), (509, 39550), (565, 35630), (791, 25450), (1018, 19775), (1130, 17815), (1582, 12725), (2545, 7910), (2825, 7126), (3563, 5650), (3955, 5090)]