78959720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3863}}^1$

素因数の和:3954

約数の個数: 64

約数和(自身を含む): 205873920

約数和(自身を除く): 126914200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 3863, 4088, 5110, 7726, 10220, 15452, 19315, 20440, 27041, 30904, 38630, 54082, 77260, 108164, 135205, 154520, 216328, 270410, 281999, 540820, 563998, 1081640, 1127996, 1409995, 1973993, 2255992, 2819990, 3947986, 5639980, 7895972, 9869965, 11279960, 15791944, 19739930, 39479860, 78959720]

約数ペア:

[(1, 78959720), (2, 39479860), (4, 19739930), (5, 15791944), (7, 11279960), (8, 9869965), (10, 7895972), (14, 5639980), (20, 3947986), (28, 2819990), (35, 2255992), (40, 1973993), (56, 1409995), (70, 1127996), (73, 1081640), (140, 563998), (146, 540820), (280, 281999), (292, 270410), (365, 216328), (511, 154520), (584, 135205), (730, 108164), (1022, 77260), (1460, 54082), (2044, 38630), (2555, 30904), (2920, 27041), (3863, 20440), (4088, 19315), (5110, 15452), (7726, 10220)]