28396260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{23}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 94872960

約数和(自身を除く): 66476700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 207, 228, 230, 276, 285, 342, 345, 361, 380, 414, 437, 460, 570, 684, 690, 722, 828, 855, 874, 1035, 1083, 1140, 1311, 1380, 1444, 1710, 1748, 1805, 2070, 2166, 2185, 2622, 3249, 3420, 3610, 3933, 4140, 4332, 4370, 5244, 5415, 6498, 6555, 6859, 7220, 7866, 8303, 8740, 10830, 12996, 13110, 13718, 15732, 16245, 16606, 19665, 20577, 21660, 24909, 26220, 27436, 32490, 33212, 34295, 39330, 41154, 41515, 49818, 61731, 64980, 68590, 74727, 78660, 82308, 83030, 99636, 102885, 123462, 124545, 137180, 149454, 157757, 166060, 205770, 246924, 249090, 298908, 308655, 315514, 373635, 411540, 473271, 498180, 617310, 631028, 747270, 788785, 946542, 1234620, 1419813, 1494540, 1577570, 1893084, 2366355, 2839626, 3155140, 4732710, 5679252, 7099065, 9465420, 14198130, 28396260]

約数ペア:

[(1, 28396260), (2, 14198130), (3, 9465420), (4, 7099065), (5, 5679252), (6, 4732710), (9, 3155140), (10, 2839626), (12, 2366355), (15, 1893084), (18, 1577570), (19, 1494540), (20, 1419813), (23, 1234620), (30, 946542), (36, 788785), (38, 747270), (45, 631028), (46, 617310), (57, 498180), (60, 473271), (69, 411540), (76, 373635), (90, 315514), (92, 308655), (95, 298908), (114, 249090), (115, 246924), (138, 205770), (171, 166060), (180, 157757), (190, 149454), (207, 137180), (228, 124545), (230, 123462), (276, 102885), (285, 99636), (342, 83030), (345, 82308), (361, 78660), (380, 74727), (414, 68590), (437, 64980), (460, 61731), (570, 49818), (684, 41515), (690, 41154), (722, 39330), (828, 34295), (855, 33212), (874, 32490), (1035, 27436), (1083, 26220), (1140, 24909), (1311, 21660), (1380, 20577), (1444, 19665), (1710, 16606), (1748, 16245), (1805, 15732), (2070, 13718), (2166, 13110), (2185, 12996), (2622, 10830), (3249, 8740), (3420, 8303), (3610, 7866), (3933, 7220), (4140, 6859), (4332, 6555), (4370, 6498), (5244, 5415)]