15720040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2441}}^1$

素因数の和:2482

約数の個数: 64

約数和(自身を含む): 42197760

約数和(自身を除く): 26477720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2441, 3220, 4882, 6440, 9764, 12205, 17087, 19528, 24410, 34174, 48820, 56143, 68348, 85435, 97640, 112286, 136696, 170870, 224572, 280715, 341740, 393001, 449144, 561430, 683480, 786002, 1122860, 1572004, 1965005, 2245720, 3144008, 3930010, 7860020, 15720040]

約数ペア:

[(1, 15720040), (2, 7860020), (4, 3930010), (5, 3144008), (7, 2245720), (8, 1965005), (10, 1572004), (14, 1122860), (20, 786002), (23, 683480), (28, 561430), (35, 449144), (40, 393001), (46, 341740), (56, 280715), (70, 224572), (92, 170870), (115, 136696), (140, 112286), (161, 97640), (184, 85435), (230, 68348), (280, 56143), (322, 48820), (460, 34174), (644, 24410), (805, 19528), (920, 17087), (1288, 12205), (1610, 9764), (2441, 6440), (3220, 4882)]