18777016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21139784

約数列:

[1, 2, 4, 8, 19, 23, 38, 41, 46, 76, 82, 92, 131, 152, 164, 184, 262, 328, 437, 524, 779, 874, 943, 1048, 1558, 1748, 1886, 2489, 3013, 3116, 3496, 3772, 4978, 5371, 6026, 6232, 7544, 9956, 10742, 12052, 17917, 19912, 21484, 24104, 35834, 42968, 57247, 71668, 102049, 114494, 123533, 143336, 204098, 228988, 247066, 408196, 457976, 494132, 816392, 988264, 2347127, 4694254, 9388508, 18777016]

約数ペア:

[(1, 18777016), (2, 9388508), (4, 4694254), (8, 2347127), (19, 988264), (23, 816392), (38, 494132), (41, 457976), (46, 408196), (76, 247066), (82, 228988), (92, 204098), (131, 143336), (152, 123533), (164, 114494), (184, 102049), (262, 71668), (328, 57247), (437, 42968), (524, 35834), (779, 24104), (874, 21484), (943, 19912), (1048, 17917), (1558, 12052), (1748, 10742), (1886, 9956), (2489, 7544), (3013, 6232), (3116, 6026), (3496, 5371), (3772, 4978)]