128661210

素因数分解:

$2^1\times 3^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 363487176

約数和(自身を除く): 234825966

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 53, 54, 74, 81, 90, 106, 111, 135, 159, 162, 185, 222, 243, 265, 270, 318, 333, 370, 405, 477, 486, 530, 555, 666, 729, 795, 810, 954, 999, 1110, 1215, 1431, 1458, 1590, 1665, 1961, 1998, 2187, 2385, 2430, 2862, 2997, 3330, 3645, 3922, 4293, 4374, 4770, 4995, 5883, 5994, 6561, 7155, 7290, 8586, 8991, 9805, 9990, 10935, 11766, 12879, 13122, 14310, 14985, 17649, 17982, 19610, 21465, 21870, 25758, 26973, 29415, 29970, 32805, 35298, 38637, 42930, 44955, 52947, 53946, 58830, 64395, 65610, 77274, 80919, 88245, 89910, 105894, 115911, 128790, 134865, 158841, 161838, 176490, 193185, 231822, 242757, 264735, 269730, 317682, 347733, 386370, 404595, 476523, 485514, 529470, 579555, 695466, 794205, 809190, 953046, 1159110, 1213785, 1429569, 1588410, 1738665, 2382615, 2427570, 2859138, 3477330, 4288707, 4765230, 7147845, 8577414, 12866121, 14295690, 21443535, 25732242, 42887070, 64330605, 128661210]

約数ペア:

[(1, 128661210), (2, 64330605), (3, 42887070), (5, 25732242), (6, 21443535), (9, 14295690), (10, 12866121), (15, 8577414), (18, 7147845), (27, 4765230), (30, 4288707), (37, 3477330), (45, 2859138), (53, 2427570), (54, 2382615), (74, 1738665), (81, 1588410), (90, 1429569), (106, 1213785), (111, 1159110), (135, 953046), (159, 809190), (162, 794205), (185, 695466), (222, 579555), (243, 529470), (265, 485514), (270, 476523), (318, 404595), (333, 386370), (370, 347733), (405, 317682), (477, 269730), (486, 264735), (530, 242757), (555, 231822), (666, 193185), (729, 176490), (795, 161838), (810, 158841), (954, 134865), (999, 128790), (1110, 115911), (1215, 105894), (1431, 89910), (1458, 88245), (1590, 80919), (1665, 77274), (1961, 65610), (1998, 64395), (2187, 58830), (2385, 53946), (2430, 52947), (2862, 44955), (2997, 42930), (3330, 38637), (3645, 35298), (3922, 32805), (4293, 29970), (4374, 29415), (4770, 26973), (4995, 25758), (5883, 21870), (5994, 21465), (6561, 19610), (7155, 17982), (7290, 17649), (8586, 14985), (8991, 14310), (9805, 13122), (9990, 12879), (10935, 11766)]