20155129720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{24071}}^1$

素因数の和:24277

約数の個数: 96

約数和(自身を含む): 50136680160

約数和(自身を除く): 29981550440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 173, 220, 242, 346, 440, 484, 605, 692, 865, 968, 1210, 1384, 1730, 1903, 2420, 3460, 3806, 4840, 6920, 7612, 9515, 15224, 19030, 20933, 24071, 38060, 41866, 48142, 76120, 83732, 96284, 104665, 120355, 167464, 192568, 209330, 240710, 264781, 418660, 481420, 529562, 837320, 962840, 1059124, 1323905, 2118248, 2647810, 2912591, 4164283, 5295620, 5825182, 8328566, 10591240, 11650364, 14562955, 16657132, 20821415, 23300728, 29125910, 33314264, 41642830, 45807113, 58251820, 83285660, 91614226, 116503640, 166571320, 183228452, 229035565, 366456904, 458071130, 503878243, 916142260, 1007756486, 1832284520, 2015512972, 2519391215, 4031025944, 5038782430, 10077564860, 20155129720]

約数ペア:

[(1, 20155129720), (2, 10077564860), (4, 5038782430), (5, 4031025944), (8, 2519391215), (10, 2015512972), (11, 1832284520), (20, 1007756486), (22, 916142260), (40, 503878243), (44, 458071130), (55, 366456904), (88, 229035565), (110, 183228452), (121, 166571320), (173, 116503640), (220, 91614226), (242, 83285660), (346, 58251820), (440, 45807113), (484, 41642830), (605, 33314264), (692, 29125910), (865, 23300728), (968, 20821415), (1210, 16657132), (1384, 14562955), (1730, 11650364), (1903, 10591240), (2420, 8328566), (3460, 5825182), (3806, 5295620), (4840, 4164283), (6920, 2912591), (7612, 2647810), (9515, 2118248), (15224, 1323905), (19030, 1059124), (20933, 962840), (24071, 837320), (38060, 529562), (41866, 481420), (48142, 418660), (76120, 264781), (83732, 240710), (96284, 209330), (104665, 192568), (120355, 167464)]