156728920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 360360000

約数和(自身を除く): 203631080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 109, 206, 218, 349, 412, 436, 515, 545, 698, 824, 872, 1030, 1090, 1396, 1745, 2060, 2180, 2792, 3490, 4120, 4360, 6980, 11227, 13960, 22454, 35947, 38041, 44908, 56135, 71894, 76082, 89816, 112270, 143788, 152164, 179735, 190205, 224540, 287576, 304328, 359470, 380410, 449080, 718940, 760820, 1437880, 1521640, 3918223, 7836446, 15672892, 19591115, 31345784, 39182230, 78364460, 156728920]

約数ペア:

[(1, 156728920), (2, 78364460), (4, 39182230), (5, 31345784), (8, 19591115), (10, 15672892), (20, 7836446), (40, 3918223), (103, 1521640), (109, 1437880), (206, 760820), (218, 718940), (349, 449080), (412, 380410), (436, 359470), (515, 304328), (545, 287576), (698, 224540), (824, 190205), (872, 179735), (1030, 152164), (1090, 143788), (1396, 112270), (1745, 89816), (2060, 76082), (2180, 71894), (2792, 56135), (3490, 44908), (4120, 38041), (4360, 35947), (6980, 22454), (11227, 13960)]