289490080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{787}}^1$

素因数の和:843

約数の個数: 144

約数和(自身を含む): 792318240

約数和(自身を除く): 502828160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 242, 304, 352, 380, 418, 440, 484, 605, 608, 760, 787, 836, 880, 968, 1045, 1210, 1520, 1574, 1672, 1760, 1936, 2090, 2299, 2420, 3040, 3148, 3344, 3872, 3935, 4180, 4598, 4840, 6296, 6688, 7870, 8360, 8657, 9196, 9680, 11495, 12592, 14953, 15740, 16720, 17314, 18392, 19360, 22990, 25184, 29906, 31480, 33440, 34628, 36784, 43285, 45980, 59812, 62960, 69256, 73568, 74765, 86570, 91960, 95227, 119624, 125920, 138512, 149530, 164483, 173140, 183920, 190454, 239248, 277024, 299060, 328966, 346280, 367840, 380908, 476135, 478496, 598120, 657932, 692560, 761816, 822415, 952270, 1196240, 1315864, 1385120, 1523632, 1644830, 1809313, 1904540, 2392480, 2631728, 3047264, 3289660, 3618626, 3809080, 5263456, 6579320, 7237252, 7618160, 9046565, 13158640, 14474504, 15236320, 18093130, 26317280, 28949008, 36186260, 57898016, 72372520, 144745040, 289490080]

約数ペア:

[(1, 289490080), (2, 144745040), (4, 72372520), (5, 57898016), (8, 36186260), (10, 28949008), (11, 26317280), (16, 18093130), (19, 15236320), (20, 14474504), (22, 13158640), (32, 9046565), (38, 7618160), (40, 7237252), (44, 6579320), (55, 5263456), (76, 3809080), (80, 3618626), (88, 3289660), (95, 3047264), (110, 2631728), (121, 2392480), (152, 1904540), (160, 1809313), (176, 1644830), (190, 1523632), (209, 1385120), (220, 1315864), (242, 1196240), (304, 952270), (352, 822415), (380, 761816), (418, 692560), (440, 657932), (484, 598120), (605, 478496), (608, 476135), (760, 380908), (787, 367840), (836, 346280), (880, 328966), (968, 299060), (1045, 277024), (1210, 239248), (1520, 190454), (1574, 183920), (1672, 173140), (1760, 164483), (1936, 149530), (2090, 138512), (2299, 125920), (2420, 119624), (3040, 95227), (3148, 91960), (3344, 86570), (3872, 74765), (3935, 73568), (4180, 69256), (4598, 62960), (4840, 59812), (6296, 45980), (6688, 43285), (7870, 36784), (8360, 34628), (8657, 33440), (9196, 31480), (9680, 29906), (11495, 25184), (12592, 22990), (14953, 19360), (15740, 18392), (16720, 17314)]