8720021988

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{601}}^1\times {\mathrm{5521}}^1$

素因数の和:6205

約数の個数: 72

約数和(自身を含む): 22385459096

約数和(自身を除く): 13665437108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 601, 657, 876, 1202, 1314, 1803, 2404, 2628, 3606, 5409, 5521, 7212, 10818, 11042, 16563, 21636, 22084, 33126, 43873, 49689, 66252, 87746, 99378, 131619, 175492, 198756, 263238, 394857, 403033, 526476, 789714, 806066, 1209099, 1579428, 1612132, 2418198, 3318121, 3627297, 4836396, 6636242, 7254594, 9954363, 13272484, 14509188, 19908726, 29863089, 39817452, 59726178, 119452356, 242222833, 484445666, 726668499, 968891332, 1453336998, 2180005497, 2906673996, 4360010994, 8720021988]

約数ペア:

[(1, 8720021988), (2, 4360010994), (3, 2906673996), (4, 2180005497), (6, 1453336998), (9, 968891332), (12, 726668499), (18, 484445666), (36, 242222833), (73, 119452356), (146, 59726178), (219, 39817452), (292, 29863089), (438, 19908726), (601, 14509188), (657, 13272484), (876, 9954363), (1202, 7254594), (1314, 6636242), (1803, 4836396), (2404, 3627297), (2628, 3318121), (3606, 2418198), (5409, 1612132), (5521, 1579428), (7212, 1209099), (10818, 806066), (11042, 789714), (16563, 526476), (21636, 403033), (22084, 394857), (33126, 263238), (43873, 198756), (49689, 175492), (66252, 131619), (87746, 99378)]