28297724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{269}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 64985760

約数和(自身を除く): 36688036

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 269, 289, 364, 442, 476, 538, 578, 884, 1076, 1156, 1547, 1883, 2023, 3094, 3497, 3757, 3766, 4046, 4573, 6188, 6994, 7514, 7532, 8092, 9146, 13988, 15028, 18292, 24479, 26299, 32011, 48958, 52598, 59449, 64022, 77741, 97916, 105196, 118898, 128044, 155482, 237796, 310964, 416143, 544187, 832286, 1010633, 1088374, 1664572, 2021266, 2176748, 4042532, 7074431, 14148862, 28297724]

約数ペア:

[(1, 28297724), (2, 14148862), (4, 7074431), (7, 4042532), (13, 2176748), (14, 2021266), (17, 1664572), (26, 1088374), (28, 1010633), (34, 832286), (52, 544187), (68, 416143), (91, 310964), (119, 237796), (182, 155482), (221, 128044), (238, 118898), (269, 105196), (289, 97916), (364, 77741), (442, 64022), (476, 59449), (538, 52598), (578, 48958), (884, 32011), (1076, 26299), (1156, 24479), (1547, 18292), (1883, 15028), (2023, 13988), (3094, 9146), (3497, 8092), (3757, 7532), (3766, 7514), (4046, 6994), (4573, 6188)]