55499920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 159989760

約数和(自身を除く): 104489840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 139, 140, 155, 161, 184, 217, 230, 248, 278, 280, 310, 322, 368, 434, 460, 496, 556, 560, 620, 644, 695, 713, 805, 868, 920, 973, 1085, 1112, 1240, 1288, 1390, 1426, 1610, 1736, 1840, 1946, 2170, 2224, 2480, 2576, 2780, 2852, 3197, 3220, 3472, 3565, 3892, 4309, 4340, 4865, 4991, 5560, 5704, 6394, 6440, 7130, 7784, 8618, 8680, 9730, 9982, 11120, 11408, 12788, 12880, 14260, 15568, 15985, 17236, 17360, 19460, 19964, 21545, 22379, 24955, 25576, 28520, 30163, 31970, 34472, 38920, 39928, 43090, 44758, 49910, 51152, 57040, 60326, 63940, 68944, 77840, 79856, 86180, 89516, 99107, 99820, 111895, 120652, 127880, 150815, 172360, 179032, 198214, 199640, 223790, 241304, 255760, 301630, 344720, 358064, 396428, 399280, 447580, 482608, 495535, 603260, 693749, 792856, 895160, 991070, 1206520, 1387498, 1585712, 1790320, 1982140, 2413040, 2774996, 3468745, 3964280, 5549992, 6937490, 7928560, 11099984, 13874980, 27749960, 55499920]

約数ペア:

[(1, 55499920), (2, 27749960), (4, 13874980), (5, 11099984), (7, 7928560), (8, 6937490), (10, 5549992), (14, 3964280), (16, 3468745), (20, 2774996), (23, 2413040), (28, 1982140), (31, 1790320), (35, 1585712), (40, 1387498), (46, 1206520), (56, 991070), (62, 895160), (70, 792856), (80, 693749), (92, 603260), (112, 495535), (115, 482608), (124, 447580), (139, 399280), (140, 396428), (155, 358064), (161, 344720), (184, 301630), (217, 255760), (230, 241304), (248, 223790), (278, 199640), (280, 198214), (310, 179032), (322, 172360), (368, 150815), (434, 127880), (460, 120652), (496, 111895), (556, 99820), (560, 99107), (620, 89516), (644, 86180), (695, 79856), (713, 77840), (805, 68944), (868, 63940), (920, 60326), (973, 57040), (1085, 51152), (1112, 49910), (1240, 44758), (1288, 43090), (1390, 39928), (1426, 38920), (1610, 34472), (1736, 31970), (1840, 30163), (1946, 28520), (2170, 25576), (2224, 24955), (2480, 22379), (2576, 21545), (2780, 19964), (2852, 19460), (3197, 17360), (3220, 17236), (3472, 15985), (3565, 15568), (3892, 14260), (4309, 12880), (4340, 12788), (4865, 11408), (4991, 11120), (5560, 9982), (5704, 9730), (6394, 8680), (6440, 8618), (7130, 7784)]