389897147320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{237742163}}^1$

素因数の和:237742215

約数の個数: 32

約数和(自身を含む): 898665379920

約数和(自身を除く): 508768232600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 237742163, 475484326, 950968652, 1188710815, 1901937304, 2377421630, 4754843260, 9509686520, 9747428683, 19494857366, 38989714732, 48737143415, 77979429464, 97474286830, 194948573660, 389897147320]

約数ペア:

[(1, 389897147320), (2, 194948573660), (4, 97474286830), (5, 77979429464), (8, 48737143415), (10, 38989714732), (20, 19494857366), (40, 9747428683), (41, 9509686520), (82, 4754843260), (164, 2377421630), (205, 1901937304), (328, 1188710815), (410, 950968652), (820, 475484326), (1640, 237742163)]