78931440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{15661}}^1$

素因数の和:15687

約数の個数: 120

約数和(自身を含む): 302965728

約数和(自身を除く): 224034288

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 15661, 31322, 46983, 62644, 78305, 93966, 109627, 125288, 140949, 156610, 187932, 219254, 234915, 250576, 281898, 313220, 328881, 375864, 438508, 469830, 548135, 563796, 626440, 657762, 704745, 751728, 877016, 939660, 986643, 1096270, 1127592, 1252880, 1315524, 1409490, 1644405, 1754032, 1879320, 1973286, 2192540, 2255184, 2631048, 2818980, 3288810, 3758640, 3946572, 4385080, 4933215, 5262096, 5637960, 6577620, 7893144, 8770160, 9866430, 11275920, 13155240, 15786288, 19732860, 26310480, 39465720, 78931440]

約数ペア:

[(1, 78931440), (2, 39465720), (3, 26310480), (4, 19732860), (5, 15786288), (6, 13155240), (7, 11275920), (8, 9866430), (9, 8770160), (10, 7893144), (12, 6577620), (14, 5637960), (15, 5262096), (16, 4933215), (18, 4385080), (20, 3946572), (21, 3758640), (24, 3288810), (28, 2818980), (30, 2631048), (35, 2255184), (36, 2192540), (40, 1973286), (42, 1879320), (45, 1754032), (48, 1644405), (56, 1409490), (60, 1315524), (63, 1252880), (70, 1127592), (72, 1096270), (80, 986643), (84, 939660), (90, 877016), (105, 751728), (112, 704745), (120, 657762), (126, 626440), (140, 563796), (144, 548135), (168, 469830), (180, 438508), (210, 375864), (240, 328881), (252, 313220), (280, 281898), (315, 250576), (336, 234915), (360, 219254), (420, 187932), (504, 156610), (560, 140949), (630, 125288), (720, 109627), (840, 93966), (1008, 78305), (1260, 62644), (1680, 46983), (2520, 31322), (5040, 15661)]