42439280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 110827728

約数和(自身を除く): 68388448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 73, 80, 86, 104, 130, 146, 169, 172, 208, 215, 260, 292, 338, 344, 365, 430, 520, 559, 584, 676, 688, 730, 845, 860, 949, 1040, 1118, 1168, 1352, 1460, 1690, 1720, 1898, 2236, 2704, 2795, 2920, 3139, 3380, 3440, 3796, 4472, 4745, 5590, 5840, 6278, 6760, 7267, 7592, 8944, 9490, 11180, 12337, 12556, 13520, 14534, 15184, 15695, 18980, 22360, 24674, 25112, 29068, 31390, 36335, 37960, 40807, 44720, 49348, 50224, 58136, 61685, 62780, 72670, 75920, 81614, 98696, 116272, 123370, 125560, 145340, 163228, 197392, 204035, 246740, 251120, 290680, 326456, 408070, 493480, 530491, 581360, 652912, 816140, 986960, 1060982, 1632280, 2121964, 2652455, 3264560, 4243928, 5304910, 8487856, 10609820, 21219640, 42439280]

約数ペア:

[(1, 42439280), (2, 21219640), (4, 10609820), (5, 8487856), (8, 5304910), (10, 4243928), (13, 3264560), (16, 2652455), (20, 2121964), (26, 1632280), (40, 1060982), (43, 986960), (52, 816140), (65, 652912), (73, 581360), (80, 530491), (86, 493480), (104, 408070), (130, 326456), (146, 290680), (169, 251120), (172, 246740), (208, 204035), (215, 197392), (260, 163228), (292, 145340), (338, 125560), (344, 123370), (365, 116272), (430, 98696), (520, 81614), (559, 75920), (584, 72670), (676, 62780), (688, 61685), (730, 58136), (845, 50224), (860, 49348), (949, 44720), (1040, 40807), (1118, 37960), (1168, 36335), (1352, 31390), (1460, 29068), (1690, 25112), (1720, 24674), (1898, 22360), (2236, 18980), (2704, 15695), (2795, 15184), (2920, 14534), (3139, 13520), (3380, 12556), (3440, 12337), (3796, 11180), (4472, 9490), (4745, 8944), (5590, 7592), (5840, 7267), (6278, 6760)]