855085400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^2$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 2231732160

約数和(自身を除く): 1376646760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 103, 104, 124, 130, 155, 200, 206, 248, 260, 310, 325, 403, 412, 515, 520, 620, 650, 775, 806, 824, 1030, 1240, 1300, 1339, 1550, 1612, 2015, 2060, 2575, 2600, 2678, 3100, 3193, 3224, 4030, 4120, 5150, 5356, 6200, 6386, 6695, 8060, 10075, 10300, 10609, 10712, 12772, 13390, 15965, 16120, 20150, 20600, 21218, 25544, 26780, 31930, 33475, 40300, 41509, 42436, 53045, 53560, 63860, 66950, 79825, 80600, 83018, 84872, 106090, 127720, 133900, 137917, 159650, 166036, 207545, 212180, 265225, 267800, 275834, 319300, 328879, 332072, 415090, 424360, 530450, 551668, 638600, 657758, 689585, 830180, 1037725, 1060900, 1103336, 1315516, 1379170, 1644395, 1660360, 2075450, 2121800, 2631032, 2758340, 3288790, 3447925, 4150900, 4275427, 5516680, 6577580, 6895850, 8221975, 8301800, 8550854, 13155160, 13791700, 16443950, 17101708, 21377135, 27583400, 32887900, 34203416, 42754270, 65775800, 85508540, 106885675, 171017080, 213771350, 427542700, 855085400]

約数ペア:

[(1, 855085400), (2, 427542700), (4, 213771350), (5, 171017080), (8, 106885675), (10, 85508540), (13, 65775800), (20, 42754270), (25, 34203416), (26, 32887900), (31, 27583400), (40, 21377135), (50, 17101708), (52, 16443950), (62, 13791700), (65, 13155160), (100, 8550854), (103, 8301800), (104, 8221975), (124, 6895850), (130, 6577580), (155, 5516680), (200, 4275427), (206, 4150900), (248, 3447925), (260, 3288790), (310, 2758340), (325, 2631032), (403, 2121800), (412, 2075450), (515, 1660360), (520, 1644395), (620, 1379170), (650, 1315516), (775, 1103336), (806, 1060900), (824, 1037725), (1030, 830180), (1240, 689585), (1300, 657758), (1339, 638600), (1550, 551668), (1612, 530450), (2015, 424360), (2060, 415090), (2575, 332072), (2600, 328879), (2678, 319300), (3100, 275834), (3193, 267800), (3224, 265225), (4030, 212180), (4120, 207545), (5150, 166036), (5356, 159650), (6200, 137917), (6386, 133900), (6695, 127720), (8060, 106090), (10075, 84872), (10300, 83018), (10609, 80600), (10712, 79825), (12772, 66950), (13390, 63860), (15965, 53560), (16120, 53045), (20150, 42436), (20600, 41509), (21218, 40300), (25544, 33475), (26780, 31930)]