20652480

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 168

約数和(自身を含む): 72749664

約数和(自身を除く): 52097184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 101, 120, 142, 144, 160, 180, 192, 202, 213, 240, 284, 288, 303, 320, 355, 360, 404, 426, 480, 505, 568, 576, 606, 639, 710, 720, 808, 852, 909, 960, 1010, 1065, 1136, 1212, 1278, 1420, 1440, 1515, 1616, 1704, 1818, 2020, 2130, 2272, 2424, 2556, 2840, 2880, 3030, 3195, 3232, 3408, 3636, 4040, 4260, 4544, 4545, 4848, 5112, 5680, 6060, 6390, 6464, 6816, 7171, 7272, 8080, 8520, 9090, 9696, 10224, 11360, 12120, 12780, 13632, 14342, 14544, 16160, 17040, 18180, 19392, 20448, 21513, 22720, 24240, 25560, 28684, 29088, 32320, 34080, 35855, 36360, 40896, 43026, 48480, 51120, 57368, 58176, 64539, 68160, 71710, 72720, 86052, 96960, 102240, 107565, 114736, 129078, 143420, 145440, 172104, 204480, 215130, 229472, 258156, 286840, 290880, 322695, 344208, 430260, 458944, 516312, 573680, 645390, 688416, 860520, 1032624, 1147360, 1290780, 1376832, 1721040, 2065248, 2294720, 2581560, 3442080, 4130496, 5163120, 6884160, 10326240, 20652480]

約数ペア:

[(1, 20652480), (2, 10326240), (3, 6884160), (4, 5163120), (5, 4130496), (6, 3442080), (8, 2581560), (9, 2294720), (10, 2065248), (12, 1721040), (15, 1376832), (16, 1290780), (18, 1147360), (20, 1032624), (24, 860520), (30, 688416), (32, 645390), (36, 573680), (40, 516312), (45, 458944), (48, 430260), (60, 344208), (64, 322695), (71, 290880), (72, 286840), (80, 258156), (90, 229472), (96, 215130), (101, 204480), (120, 172104), (142, 145440), (144, 143420), (160, 129078), (180, 114736), (192, 107565), (202, 102240), (213, 96960), (240, 86052), (284, 72720), (288, 71710), (303, 68160), (320, 64539), (355, 58176), (360, 57368), (404, 51120), (426, 48480), (480, 43026), (505, 40896), (568, 36360), (576, 35855), (606, 34080), (639, 32320), (710, 29088), (720, 28684), (808, 25560), (852, 24240), (909, 22720), (960, 21513), (1010, 20448), (1065, 19392), (1136, 18180), (1212, 17040), (1278, 16160), (1420, 14544), (1440, 14342), (1515, 13632), (1616, 12780), (1704, 12120), (1818, 11360), (2020, 10224), (2130, 9696), (2272, 9090), (2424, 8520), (2556, 8080), (2840, 7272), (2880, 7171), (3030, 6816), (3195, 6464), (3232, 6390), (3408, 6060), (3636, 5680), (4040, 5112), (4260, 4848), (4544, 4545)]