38899840

素因数分解:

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

素因数の和:502

約数の個数: 128

約数和(自身を含む): 112118400

約数和(自身を除く): 73218560

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, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 457, 532, 560, 608, 640, 665, 760, 896, 914, 1064, 1120, 1216, 1330, 1520, 1828, 2128, 2240, 2285, 2432, 2660, 3040, 3199, 3656, 4256, 4480, 4570, 5320, 6080, 6398, 7312, 8512, 8683, 9140, 10640, 12160, 12796, 14624, 15995, 17024, 17366, 18280, 21280, 25592, 29248, 31990, 34732, 36560, 42560, 43415, 51184, 58496, 60781, 63980, 69464, 73120, 85120, 86830, 102368, 121562, 127960, 138928, 146240, 173660, 204736, 243124, 255920, 277856, 292480, 303905, 347320, 409472, 486248, 511840, 555712, 607810, 694640, 972496, 1023680, 1111424, 1215620, 1389280, 1944992, 2047360, 2431240, 2778560, 3889984, 4862480, 5557120, 7779968, 9724960, 19449920, 38899840]

約数ペア:

[(1, 38899840), (2, 19449920), (4, 9724960), (5, 7779968), (7, 5557120), (8, 4862480), (10, 3889984), (14, 2778560), (16, 2431240), (19, 2047360), (20, 1944992), (28, 1389280), (32, 1215620), (35, 1111424), (38, 1023680), (40, 972496), (56, 694640), (64, 607810), (70, 555712), (76, 511840), (80, 486248), (95, 409472), (112, 347320), (128, 303905), (133, 292480), (140, 277856), (152, 255920), (160, 243124), (190, 204736), (224, 173660), (266, 146240), (280, 138928), (304, 127960), (320, 121562), (380, 102368), (448, 86830), (457, 85120), (532, 73120), (560, 69464), (608, 63980), (640, 60781), (665, 58496), (760, 51184), (896, 43415), (914, 42560), (1064, 36560), (1120, 34732), (1216, 31990), (1330, 29248), (1520, 25592), (1828, 21280), (2128, 18280), (2240, 17366), (2285, 17024), (2432, 15995), (2660, 14624), (3040, 12796), (3199, 12160), (3656, 10640), (4256, 9140), (4480, 8683), (4570, 8512), (5320, 7312), (6080, 6398)]