19204020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 192

約数和(自身を含む): 67495680

約数和(自身を除く): 48291660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 53, 54, 55, 60, 61, 66, 90, 99, 106, 108, 110, 122, 132, 135, 159, 165, 180, 183, 198, 212, 220, 244, 265, 270, 297, 305, 318, 330, 366, 396, 477, 495, 530, 540, 549, 583, 594, 610, 636, 660, 671, 732, 795, 915, 954, 990, 1060, 1098, 1166, 1188, 1220, 1342, 1431, 1485, 1590, 1647, 1749, 1830, 1908, 1980, 2013, 2196, 2332, 2385, 2684, 2745, 2862, 2915, 2970, 3180, 3233, 3294, 3355, 3498, 3660, 4026, 4770, 5247, 5490, 5724, 5830, 5940, 6039, 6466, 6588, 6710, 6996, 7155, 8052, 8235, 8745, 9540, 9699, 10065, 10494, 10980, 11660, 12078, 12932, 13420, 14310, 15741, 16165, 16470, 17490, 18117, 19398, 20130, 20988, 24156, 26235, 28620, 29097, 30195, 31482, 32330, 32940, 34980, 35563, 36234, 38796, 40260, 48495, 52470, 58194, 60390, 62964, 64660, 71126, 72468, 78705, 87291, 90585, 96990, 104940, 106689, 116388, 120780, 142252, 145485, 157410, 174582, 177815, 181170, 193980, 213378, 290970, 314820, 320067, 349164, 355630, 362340, 426756, 436455, 533445, 581940, 640134, 711260, 872910, 960201, 1066890, 1280268, 1600335, 1745820, 1920402, 2133780, 3200670, 3840804, 4801005, 6401340, 9602010, 19204020]

約数ペア:

[(1, 19204020), (2, 9602010), (3, 6401340), (4, 4801005), (5, 3840804), (6, 3200670), (9, 2133780), (10, 1920402), (11, 1745820), (12, 1600335), (15, 1280268), (18, 1066890), (20, 960201), (22, 872910), (27, 711260), (30, 640134), (33, 581940), (36, 533445), (44, 436455), (45, 426756), (53, 362340), (54, 355630), (55, 349164), (60, 320067), (61, 314820), (66, 290970), (90, 213378), (99, 193980), (106, 181170), (108, 177815), (110, 174582), (122, 157410), (132, 145485), (135, 142252), (159, 120780), (165, 116388), (180, 106689), (183, 104940), (198, 96990), (212, 90585), (220, 87291), (244, 78705), (265, 72468), (270, 71126), (297, 64660), (305, 62964), (318, 60390), (330, 58194), (366, 52470), (396, 48495), (477, 40260), (495, 38796), (530, 36234), (540, 35563), (549, 34980), (583, 32940), (594, 32330), (610, 31482), (636, 30195), (660, 29097), (671, 28620), (732, 26235), (795, 24156), (915, 20988), (954, 20130), (990, 19398), (1060, 18117), (1098, 17490), (1166, 16470), (1188, 16165), (1220, 15741), (1342, 14310), (1431, 13420), (1485, 12932), (1590, 12078), (1647, 11660), (1749, 10980), (1830, 10494), (1908, 10065), (1980, 9699), (2013, 9540), (2196, 8745), (2332, 8235), (2385, 8052), (2684, 7155), (2745, 6996), (2862, 6710), (2915, 6588), (2970, 6466), (3180, 6039), (3233, 5940), (3294, 5830), (3355, 5724), (3498, 5490), (3660, 5247), (4026, 4770)]