28196988

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 72713088

約数和(自身を除く): 44516100

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 228, 276, 283, 361, 437, 566, 722, 849, 874, 1083, 1132, 1311, 1444, 1698, 1748, 2166, 2622, 3396, 4332, 5244, 5377, 6509, 8303, 10754, 13018, 16131, 16606, 19527, 21508, 24909, 26036, 32262, 33212, 39054, 49818, 64524, 78108, 99636, 102163, 123671, 204326, 247342, 306489, 371013, 408652, 494684, 612978, 742026, 1225956, 1484052, 2349749, 4699498, 7049247, 9398996, 14098494, 28196988]

約数ペア:

[(1, 28196988), (2, 14098494), (3, 9398996), (4, 7049247), (6, 4699498), (12, 2349749), (19, 1484052), (23, 1225956), (38, 742026), (46, 612978), (57, 494684), (69, 408652), (76, 371013), (92, 306489), (114, 247342), (138, 204326), (228, 123671), (276, 102163), (283, 99636), (361, 78108), (437, 64524), (566, 49818), (722, 39054), (849, 33212), (874, 32262), (1083, 26036), (1132, 24909), (1311, 21508), (1444, 19527), (1698, 16606), (1748, 16131), (2166, 13018), (2622, 10754), (3396, 8303), (4332, 6509), (5244, 5377)]