78440000

素因数分解:

$2^6\times 5^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 140

約数和(自身を含む): 203531724

約数和(自身を除く): 125091724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 53, 64, 74, 80, 100, 106, 125, 148, 160, 185, 200, 212, 250, 265, 296, 320, 370, 400, 424, 500, 530, 592, 625, 740, 800, 848, 925, 1000, 1060, 1184, 1250, 1325, 1480, 1600, 1696, 1850, 1961, 2000, 2120, 2368, 2500, 2650, 2960, 3392, 3700, 3922, 4000, 4240, 4625, 5000, 5300, 5920, 6625, 7400, 7844, 8000, 8480, 9250, 9805, 10000, 10600, 11840, 13250, 14800, 15688, 16960, 18500, 19610, 20000, 21200, 23125, 26500, 29600, 31376, 33125, 37000, 39220, 40000, 42400, 46250, 49025, 53000, 59200, 62752, 66250, 74000, 78440, 84800, 92500, 98050, 106000, 125504, 132500, 148000, 156880, 185000, 196100, 212000, 245125, 265000, 296000, 313760, 370000, 392200, 424000, 490250, 530000, 627520, 740000, 784400, 980500, 1060000, 1225625, 1480000, 1568800, 1961000, 2120000, 2451250, 3137600, 3922000, 4902500, 7844000, 9805000, 15688000, 19610000, 39220000, 78440000]

約数ペア:

[(1, 78440000), (2, 39220000), (4, 19610000), (5, 15688000), (8, 9805000), (10, 7844000), (16, 4902500), (20, 3922000), (25, 3137600), (32, 2451250), (37, 2120000), (40, 1961000), (50, 1568800), (53, 1480000), (64, 1225625), (74, 1060000), (80, 980500), (100, 784400), (106, 740000), (125, 627520), (148, 530000), (160, 490250), (185, 424000), (200, 392200), (212, 370000), (250, 313760), (265, 296000), (296, 265000), (320, 245125), (370, 212000), (400, 196100), (424, 185000), (500, 156880), (530, 148000), (592, 132500), (625, 125504), (740, 106000), (800, 98050), (848, 92500), (925, 84800), (1000, 78440), (1060, 74000), (1184, 66250), (1250, 62752), (1325, 59200), (1480, 53000), (1600, 49025), (1696, 46250), (1850, 42400), (1961, 40000), (2000, 39220), (2120, 37000), (2368, 33125), (2500, 31376), (2650, 29600), (2960, 26500), (3392, 23125), (3700, 21200), (3922, 20000), (4000, 19610), (4240, 18500), (4625, 16960), (5000, 15688), (5300, 14800), (5920, 13250), (6625, 11840), (7400, 10600), (7844, 10000), (8000, 9805), (8480, 9250)]