396813855980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{325257259}}^1$

素因数の和:325257329

約数の個数: 24

約数和(自身を含む): 846969905040

約数和(自身を除く): 450156049060

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 325257259, 650514518, 1301029036, 1626286295, 3252572590, 6505145180, 19840692799, 39681385598, 79362771196, 99203463995, 198406927990, 396813855980]

約数ペア:

[(1, 396813855980), (2, 198406927990), (4, 99203463995), (5, 79362771196), (10, 39681385598), (20, 19840692799), (61, 6505145180), (122, 3252572590), (244, 1626286295), (305, 1301029036), (610, 650514518), (1220, 325257259)]