28147980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2311}}^1$

素因数の和:2359

約数の個数: 96

約数和(自身を含む): 93219840

約数和(自身を除く): 65071860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2311, 2436, 3045, 4060, 4622, 6090, 6933, 9244, 11555, 12180, 13866, 16177, 23110, 27732, 32354, 34665, 46220, 48531, 64708, 67019, 69330, 80885, 97062, 134038, 138660, 161770, 194124, 201057, 242655, 268076, 323540, 335095, 402114, 469133, 485310, 670190, 804228, 938266, 970620, 1005285, 1340380, 1407399, 1876532, 2010570, 2345665, 2814798, 4021140, 4691330, 5629596, 7036995, 9382660, 14073990, 28147980]

約数ペア:

[(1, 28147980), (2, 14073990), (3, 9382660), (4, 7036995), (5, 5629596), (6, 4691330), (7, 4021140), (10, 2814798), (12, 2345665), (14, 2010570), (15, 1876532), (20, 1407399), (21, 1340380), (28, 1005285), (29, 970620), (30, 938266), (35, 804228), (42, 670190), (58, 485310), (60, 469133), (70, 402114), (84, 335095), (87, 323540), (105, 268076), (116, 242655), (140, 201057), (145, 194124), (174, 161770), (203, 138660), (210, 134038), (290, 97062), (348, 80885), (406, 69330), (420, 67019), (435, 64708), (580, 48531), (609, 46220), (812, 34665), (870, 32354), (1015, 27732), (1218, 23110), (1740, 16177), (2030, 13866), (2311, 12180), (2436, 11555), (3045, 9244), (4060, 6933), (4622, 6090)]