18018980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 46884096

約数和(自身を除く): 28865116

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 67, 68, 70, 85, 113, 119, 134, 140, 170, 226, 238, 268, 335, 340, 452, 469, 476, 565, 595, 670, 791, 938, 1130, 1139, 1190, 1340, 1582, 1876, 1921, 2260, 2278, 2345, 2380, 3164, 3842, 3955, 4556, 4690, 5695, 7571, 7684, 7910, 7973, 9380, 9605, 11390, 13447, 15142, 15820, 15946, 19210, 22780, 26894, 30284, 31892, 37855, 38420, 39865, 52997, 53788, 67235, 75710, 79730, 105994, 128707, 134470, 151420, 159460, 211988, 257414, 264985, 268940, 514828, 529970, 643535, 900949, 1059940, 1287070, 1801898, 2574140, 3603796, 4504745, 9009490, 18018980]

約数ペア:

[(1, 18018980), (2, 9009490), (4, 4504745), (5, 3603796), (7, 2574140), (10, 1801898), (14, 1287070), (17, 1059940), (20, 900949), (28, 643535), (34, 529970), (35, 514828), (67, 268940), (68, 264985), (70, 257414), (85, 211988), (113, 159460), (119, 151420), (134, 134470), (140, 128707), (170, 105994), (226, 79730), (238, 75710), (268, 67235), (335, 53788), (340, 52997), (452, 39865), (469, 38420), (476, 37855), (565, 31892), (595, 30284), (670, 26894), (791, 22780), (938, 19210), (1130, 15946), (1139, 15820), (1190, 15142), (1340, 13447), (1582, 11390), (1876, 9605), (1921, 9380), (2260, 7973), (2278, 7910), (2345, 7684), (2380, 7571), (3164, 5695), (3842, 4690), (3955, 4556)]