28101996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 79934400

約数和(自身を除く): 51832404

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 149, 156, 169, 186, 234, 279, 298, 338, 372, 403, 447, 468, 507, 558, 596, 676, 806, 894, 1014, 1116, 1209, 1341, 1521, 1612, 1788, 1937, 2028, 2418, 2682, 3042, 3627, 3874, 4619, 4836, 5239, 5364, 5811, 6084, 7254, 7748, 9238, 10478, 11622, 13857, 14508, 15717, 17433, 18476, 20956, 23244, 25181, 27714, 31434, 34866, 41571, 47151, 50362, 55428, 60047, 62868, 69732, 75543, 83142, 94302, 100724, 120094, 151086, 166284, 180141, 188604, 226629, 240188, 302172, 360282, 453258, 540423, 720564, 780611, 906516, 1080846, 1561222, 2161692, 2341833, 3122444, 4683666, 7025499, 9367332, 14050998, 28101996]

約数ペア:

[(1, 28101996), (2, 14050998), (3, 9367332), (4, 7025499), (6, 4683666), (9, 3122444), (12, 2341833), (13, 2161692), (18, 1561222), (26, 1080846), (31, 906516), (36, 780611), (39, 720564), (52, 540423), (62, 453258), (78, 360282), (93, 302172), (117, 240188), (124, 226629), (149, 188604), (156, 180141), (169, 166284), (186, 151086), (234, 120094), (279, 100724), (298, 94302), (338, 83142), (372, 75543), (403, 69732), (447, 62868), (468, 60047), (507, 55428), (558, 50362), (596, 47151), (676, 41571), (806, 34866), (894, 31434), (1014, 27714), (1116, 25181), (1209, 23244), (1341, 20956), (1521, 18476), (1612, 17433), (1788, 15717), (1937, 14508), (2028, 13857), (2418, 11622), (2682, 10478), (3042, 9238), (3627, 7748), (3874, 7254), (4619, 6084), (4836, 5811), (5239, 5364)]