19407880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28541}}^1$

素因数の和:28569

約数の個数: 32

約数和(自身を含む): 46238040

約数和(自身を除く): 26830160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28541, 57082, 114164, 142705, 228328, 285410, 485197, 570820, 970394, 1141640, 1940788, 2425985, 3881576, 4851970, 9703940, 19407880]

約数ペア:

[(1, 19407880), (2, 9703940), (4, 4851970), (5, 3881576), (8, 2425985), (10, 1940788), (17, 1141640), (20, 970394), (34, 570820), (40, 485197), (68, 285410), (85, 228328), (136, 142705), (170, 114164), (340, 57082), (680, 28541)]