20164026.000000000

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{207941}}^1$

素因数の和:207993

約数の個数: 40

約数和(自身を含む): 1082961936

約数和(自身を除く): 673734048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 207941, 415882, 623823, 831764, 1247646, 1663528, 2495292, 3327056, 4990584, 8525581, 9981168, 17051162, 25576743, 34102324, 51153486, 68204648, 102306972, 136409296, 204613944, 409227888]

約数ペア:

[(1, 409227888), (2, 204613944), (3, 136409296), (4, 102306972), (6, 68204648), (8, 51153486), (12, 34102324), (16, 25576743), (24, 17051162), (41, 9981168), (48, 8525581), (82, 4990584), (123, 3327056), (164, 2495292), (246, 1663528), (328, 1247646), (492, 831764), (656, 623823), (984, 415882), (1968, 207941)]