28081716

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 72432864

約数和(自身を除く): 44351148

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 169, 183, 227, 244, 338, 366, 454, 507, 676, 681, 732, 793, 908, 1014, 1362, 1586, 2028, 2379, 2724, 2951, 3172, 4758, 5902, 8853, 9516, 10309, 11804, 13847, 17706, 20618, 27694, 30927, 35412, 38363, 41236, 41541, 55388, 61854, 76726, 83082, 115089, 123708, 153452, 166164, 180011, 230178, 360022, 460356, 540033, 720044, 1080066, 2160132, 2340143, 4680286, 7020429, 9360572, 14040858, 28081716]

約数ペア:

[(1, 28081716), (2, 14040858), (3, 9360572), (4, 7020429), (6, 4680286), (12, 2340143), (13, 2160132), (26, 1080066), (39, 720044), (52, 540033), (61, 460356), (78, 360022), (122, 230178), (156, 180011), (169, 166164), (183, 153452), (227, 123708), (244, 115089), (338, 83082), (366, 76726), (454, 61854), (507, 55388), (676, 41541), (681, 41236), (732, 38363), (793, 35412), (908, 30927), (1014, 27694), (1362, 20618), (1586, 17706), (2028, 13847), (2379, 11804), (2724, 10309), (2951, 9516), (3172, 8853), (4758, 5902)]