1649560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 4250880

約数和(自身を除く): 2601320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 163, 184, 220, 230, 253, 326, 440, 460, 506, 652, 815, 920, 1012, 1265, 1304, 1630, 1793, 2024, 2530, 3260, 3586, 3749, 5060, 6520, 7172, 7498, 8965, 10120, 14344, 14996, 17930, 18745, 29992, 35860, 37490, 41239, 71720, 74980, 82478, 149960, 164956, 206195, 329912, 412390, 824780, 1649560]

約数ペア:

[(1, 1649560), (2, 824780), (4, 412390), (5, 329912), (8, 206195), (10, 164956), (11, 149960), (20, 82478), (22, 74980), (23, 71720), (40, 41239), (44, 37490), (46, 35860), (55, 29992), (88, 18745), (92, 17930), (110, 14996), (115, 14344), (163, 10120), (184, 8965), (220, 7498), (230, 7172), (253, 6520), (326, 5060), (440, 3749), (460, 3586), (506, 3260), (652, 2530), (815, 2024), (920, 1793), (1012, 1630), (1265, 1304)]