721000770005

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^2\times {\mathrm{2657}}^1$

素因数の和:3126

約数の個数: 48

約数和(自身を含む): 917208520704

約数和(自身を除く): 196207750699

約数列:

[1, 5, 31, 47, 155, 193, 235, 965, 1457, 2657, 5983, 7285, 9071, 13285, 29915, 37249, 45355, 82367, 124879, 186245, 281201, 411835, 512801, 624395, 1154719, 1406005, 1750703, 2564005, 3871249, 5773595, 8753515, 15896831, 19356245, 24101647, 54271793, 79484155, 98970593, 120508235, 271358965, 494852965, 747151057, 3068088383, 3735755285, 4651617871, 15340441915, 23258089355, 144200154001, 721000770005]

約数ペア:

[(1, 721000770005), (5, 144200154001), (31, 23258089355), (47, 15340441915), (155, 4651617871), (193, 3735755285), (235, 3068088383), (965, 747151057), (1457, 494852965), (2657, 271358965), (5983, 120508235), (7285, 98970593), (9071, 79484155), (13285, 54271793), (29915, 24101647), (37249, 19356245), (45355, 15896831), (82367, 8753515), (124879, 5773595), (186245, 3871249), (281201, 2564005), (411835, 1750703), (512801, 1406005), (624395, 1154719)]