78878240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10061}}^1$

素因数の和:10090

約数の個数: 72

約数和(自身を含む): 216795852

約数和(自身を除く): 137917612

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10061, 20122, 40244, 50305, 70427, 80488, 100610, 140854, 160976, 201220, 281708, 321952, 352135, 402440, 492989, 563416, 704270, 804880, 985978, 1126832, 1408540, 1609760, 1971956, 2253664, 2464945, 2817080, 3943912, 4929890, 5634160, 7887824, 9859780, 11268320, 15775648, 19719560, 39439120, 78878240]

約数ペア:

[(1, 78878240), (2, 39439120), (4, 19719560), (5, 15775648), (7, 11268320), (8, 9859780), (10, 7887824), (14, 5634160), (16, 4929890), (20, 3943912), (28, 2817080), (32, 2464945), (35, 2253664), (40, 1971956), (49, 1609760), (56, 1408540), (70, 1126832), (80, 985978), (98, 804880), (112, 704270), (140, 563416), (160, 492989), (196, 402440), (224, 352135), (245, 321952), (280, 281708), (392, 201220), (490, 160976), (560, 140854), (784, 100610), (980, 80488), (1120, 70427), (1568, 50305), (1960, 40244), (3920, 20122), (7840, 10061)]