78239840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{69857}}^1$

素因数の和:69879

約数の個数: 48

約数和(自身を含む): 211250592

約数和(自身を除く): 133010752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 69857, 139714, 279428, 349285, 488999, 558856, 698570, 977998, 1117712, 1397140, 1955996, 2235424, 2444995, 2794280, 3911992, 4889990, 5588560, 7823984, 9779980, 11177120, 15647968, 19559960, 39119920, 78239840]

約数ペア:

[(1, 78239840), (2, 39119920), (4, 19559960), (5, 15647968), (7, 11177120), (8, 9779980), (10, 7823984), (14, 5588560), (16, 4889990), (20, 3911992), (28, 2794280), (32, 2444995), (35, 2235424), (40, 1955996), (56, 1397140), (70, 1117712), (80, 977998), (112, 698570), (140, 558856), (160, 488999), (224, 349285), (280, 279428), (560, 139714), (1120, 69857)]