1990203952

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{305621}}^1$

素因数の和:305677

約数の個数: 40

約数和(自身を含む): 4320272592

約数和(自身を除く): 2330068640

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3256, 6512, 305621, 611242, 1222484, 2444968, 3361831, 4889936, 6723662, 11307977, 13447324, 22615954, 26894648, 45231908, 53789296, 90463816, 124387747, 180927632, 248775494, 497550988, 995101976, 1990203952]

約数ペア:

[(1, 1990203952), (2, 995101976), (4, 497550988), (8, 248775494), (11, 180927632), (16, 124387747), (22, 90463816), (37, 53789296), (44, 45231908), (74, 26894648), (88, 22615954), (148, 13447324), (176, 11307977), (296, 6723662), (407, 4889936), (592, 3361831), (814, 2444968), (1628, 1222484), (3256, 611242), (6512, 305621)]