19449920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:500

約数の個数: 112

約数和(自身を含む): 55839360

約数和(自身を除く): 36389440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 457, 532, 560, 608, 665, 760, 914, 1064, 1120, 1216, 1330, 1520, 1828, 2128, 2240, 2285, 2660, 3040, 3199, 3656, 4256, 4570, 5320, 6080, 6398, 7312, 8512, 8683, 9140, 10640, 12796, 14624, 15995, 17366, 18280, 21280, 25592, 29248, 31990, 34732, 36560, 42560, 43415, 51184, 60781, 63980, 69464, 73120, 86830, 102368, 121562, 127960, 138928, 146240, 173660, 204736, 243124, 255920, 277856, 303905, 347320, 486248, 511840, 555712, 607810, 694640, 972496, 1023680, 1215620, 1389280, 1944992, 2431240, 2778560, 3889984, 4862480, 9724960, 19449920]

約数ペア:

[(1, 19449920), (2, 9724960), (4, 4862480), (5, 3889984), (7, 2778560), (8, 2431240), (10, 1944992), (14, 1389280), (16, 1215620), (19, 1023680), (20, 972496), (28, 694640), (32, 607810), (35, 555712), (38, 511840), (40, 486248), (56, 347320), (64, 303905), (70, 277856), (76, 255920), (80, 243124), (95, 204736), (112, 173660), (133, 146240), (140, 138928), (152, 127960), (160, 121562), (190, 102368), (224, 86830), (266, 73120), (280, 69464), (304, 63980), (320, 60781), (380, 51184), (448, 43415), (457, 42560), (532, 36560), (560, 34732), (608, 31990), (665, 29248), (760, 25592), (914, 21280), (1064, 18280), (1120, 17366), (1216, 15995), (1330, 14624), (1520, 12796), (1828, 10640), (2128, 9140), (2240, 8683), (2285, 8512), (2660, 7312), (3040, 6398), (3199, 6080), (3656, 5320), (4256, 4570)]