19953420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{761}}^1$

素因数の和:815

約数の個数: 96

約数和(自身を含む): 61447680

約数和(自身を除く): 41494260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 38, 46, 57, 60, 69, 76, 92, 95, 114, 115, 138, 190, 228, 230, 276, 285, 345, 380, 437, 460, 570, 690, 761, 874, 1140, 1311, 1380, 1522, 1748, 2185, 2283, 2622, 3044, 3805, 4370, 4566, 5244, 6555, 7610, 8740, 9132, 11415, 13110, 14459, 15220, 17503, 22830, 26220, 28918, 35006, 43377, 45660, 52509, 57836, 70012, 72295, 86754, 87515, 105018, 144590, 173508, 175030, 210036, 216885, 262545, 289180, 332557, 350060, 433770, 525090, 665114, 867540, 997671, 1050180, 1330228, 1662785, 1995342, 3325570, 3990684, 4988355, 6651140, 9976710, 19953420]

約数ペア:

[(1, 19953420), (2, 9976710), (3, 6651140), (4, 4988355), (5, 3990684), (6, 3325570), (10, 1995342), (12, 1662785), (15, 1330228), (19, 1050180), (20, 997671), (23, 867540), (30, 665114), (38, 525090), (46, 433770), (57, 350060), (60, 332557), (69, 289180), (76, 262545), (92, 216885), (95, 210036), (114, 175030), (115, 173508), (138, 144590), (190, 105018), (228, 87515), (230, 86754), (276, 72295), (285, 70012), (345, 57836), (380, 52509), (437, 45660), (460, 43377), (570, 35006), (690, 28918), (761, 26220), (874, 22830), (1140, 17503), (1311, 15220), (1380, 14459), (1522, 13110), (1748, 11415), (2185, 9132), (2283, 8740), (2622, 7610), (3044, 6555), (3805, 5244), (4370, 4566)]