28508766

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 67737600

約数和(自身を除く): 39228834

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 149, 223, 286, 298, 429, 446, 447, 669, 858, 894, 1338, 1639, 1937, 2453, 2899, 3278, 3874, 4906, 4917, 5798, 5811, 7359, 8697, 9834, 11622, 14718, 17394, 21307, 31889, 33227, 42614, 63778, 63921, 66454, 95667, 99681, 127842, 191334, 199362, 365497, 431951, 730994, 863902, 1096491, 1295853, 2192982, 2591706, 4751461, 9502922, 14254383, 28508766]

約数ペア:

[(1, 28508766), (2, 14254383), (3, 9502922), (6, 4751461), (11, 2591706), (13, 2192982), (22, 1295853), (26, 1096491), (33, 863902), (39, 730994), (66, 431951), (78, 365497), (143, 199362), (149, 191334), (223, 127842), (286, 99681), (298, 95667), (429, 66454), (446, 63921), (447, 63778), (669, 42614), (858, 33227), (894, 31889), (1338, 21307), (1639, 17394), (1937, 14718), (2453, 11622), (2899, 9834), (3278, 8697), (3874, 7359), (4906, 5811), (4917, 5798)]