27749960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 77414400

約数和(自身を除く): 49664440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 139, 140, 155, 161, 184, 217, 230, 248, 278, 280, 310, 322, 434, 460, 556, 620, 644, 695, 713, 805, 868, 920, 973, 1085, 1112, 1240, 1288, 1390, 1426, 1610, 1736, 1946, 2170, 2780, 2852, 3197, 3220, 3565, 3892, 4309, 4340, 4865, 4991, 5560, 5704, 6394, 6440, 7130, 7784, 8618, 8680, 9730, 9982, 12788, 14260, 15985, 17236, 19460, 19964, 21545, 22379, 24955, 25576, 28520, 30163, 31970, 34472, 38920, 39928, 43090, 44758, 49910, 60326, 63940, 86180, 89516, 99107, 99820, 111895, 120652, 127880, 150815, 172360, 179032, 198214, 199640, 223790, 241304, 301630, 396428, 447580, 495535, 603260, 693749, 792856, 895160, 991070, 1206520, 1387498, 1982140, 2774996, 3468745, 3964280, 5549992, 6937490, 13874980, 27749960]

約数ペア:

[(1, 27749960), (2, 13874980), (4, 6937490), (5, 5549992), (7, 3964280), (8, 3468745), (10, 2774996), (14, 1982140), (20, 1387498), (23, 1206520), (28, 991070), (31, 895160), (35, 792856), (40, 693749), (46, 603260), (56, 495535), (62, 447580), (70, 396428), (92, 301630), (115, 241304), (124, 223790), (139, 199640), (140, 198214), (155, 179032), (161, 172360), (184, 150815), (217, 127880), (230, 120652), (248, 111895), (278, 99820), (280, 99107), (310, 89516), (322, 86180), (434, 63940), (460, 60326), (556, 49910), (620, 44758), (644, 43090), (695, 39928), (713, 38920), (805, 34472), (868, 31970), (920, 30163), (973, 28520), (1085, 25576), (1112, 24955), (1240, 22379), (1288, 21545), (1390, 19964), (1426, 19460), (1610, 17236), (1736, 15985), (1946, 14260), (2170, 12788), (2780, 9982), (2852, 9730), (3197, 8680), (3220, 8618), (3565, 7784), (3892, 7130), (4309, 6440), (4340, 6394), (4865, 5704), (4991, 5560)]