28257180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3541}}^1$

素因数の和:3579

約数の個数: 96

約数和(自身を含む): 95208960

約数和(自身を除く): 66951780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3541, 3990, 7082, 7980, 10623, 14164, 17705, 21246, 24787, 35410, 42492, 49574, 53115, 67279, 70820, 74361, 99148, 106230, 123935, 134558, 148722, 201837, 212460, 247870, 269116, 297444, 336395, 371805, 403674, 470953, 495740, 672790, 743610, 807348, 941906, 1009185, 1345580, 1412859, 1487220, 1883812, 2018370, 2354765, 2825718, 4036740, 4709530, 5651436, 7064295, 9419060, 14128590, 28257180]

約数ペア:

[(1, 28257180), (2, 14128590), (3, 9419060), (4, 7064295), (5, 5651436), (6, 4709530), (7, 4036740), (10, 2825718), (12, 2354765), (14, 2018370), (15, 1883812), (19, 1487220), (20, 1412859), (21, 1345580), (28, 1009185), (30, 941906), (35, 807348), (38, 743610), (42, 672790), (57, 495740), (60, 470953), (70, 403674), (76, 371805), (84, 336395), (95, 297444), (105, 269116), (114, 247870), (133, 212460), (140, 201837), (190, 148722), (210, 134558), (228, 123935), (266, 106230), (285, 99148), (380, 74361), (399, 70820), (420, 67279), (532, 53115), (570, 49574), (665, 42492), (798, 35410), (1140, 24787), (1330, 21246), (1596, 17705), (1995, 14164), (2660, 10623), (3541, 7980), (3990, 7082)]