20664240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2969}}^1$

素因数の和:3014

約数の個数: 80

約数和(自身を含む): 66290400

約数和(自身を除く): 45626160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 2969, 3480, 5938, 6960, 8907, 11876, 14845, 17814, 23752, 29690, 35628, 44535, 47504, 59380, 71256, 86101, 89070, 118760, 142512, 172202, 178140, 237520, 258303, 344404, 356280, 430505, 516606, 688808, 712560, 861010, 1033212, 1291515, 1377616, 1722020, 2066424, 2583030, 3444040, 4132848, 5166060, 6888080, 10332120, 20664240]

約数ペア:

[(1, 20664240), (2, 10332120), (3, 6888080), (4, 5166060), (5, 4132848), (6, 3444040), (8, 2583030), (10, 2066424), (12, 1722020), (15, 1377616), (16, 1291515), (20, 1033212), (24, 861010), (29, 712560), (30, 688808), (40, 516606), (48, 430505), (58, 356280), (60, 344404), (80, 258303), (87, 237520), (116, 178140), (120, 172202), (145, 142512), (174, 118760), (232, 89070), (240, 86101), (290, 71256), (348, 59380), (435, 47504), (464, 44535), (580, 35628), (696, 29690), (870, 23752), (1160, 17814), (1392, 14845), (1740, 11876), (2320, 8907), (2969, 6960), (3480, 5938)]