77867860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11351}}^1$

素因数の和:11381

約数の個数: 48

約数和(自身を含む): 190713600

約数和(自身を除く): 112845740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11351, 22702, 45404, 56755, 79457, 113510, 158914, 227020, 317828, 397285, 556199, 794570, 1112398, 1589140, 2224796, 2780995, 3893393, 5561990, 7786786, 11123980, 15573572, 19466965, 38933930, 77867860]

約数ペア:

[(1, 77867860), (2, 38933930), (4, 19466965), (5, 15573572), (7, 11123980), (10, 7786786), (14, 5561990), (20, 3893393), (28, 2780995), (35, 2224796), (49, 1589140), (70, 1112398), (98, 794570), (140, 556199), (196, 397285), (245, 317828), (343, 227020), (490, 158914), (686, 113510), (980, 79457), (1372, 56755), (1715, 45404), (3430, 22702), (6860, 11351)]