19358720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 88

約数和(自身を含む): 49128000

約数和(自身を除く): 29769280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 199, 256, 304, 320, 380, 398, 512, 608, 640, 760, 796, 995, 1024, 1216, 1280, 1520, 1592, 1990, 2432, 2560, 3040, 3184, 3781, 3980, 4864, 5120, 6080, 6368, 7562, 7960, 9728, 12160, 12736, 15124, 15920, 18905, 19456, 24320, 25472, 30248, 31840, 37810, 48640, 50944, 60496, 63680, 75620, 97280, 101888, 120992, 127360, 151240, 203776, 241984, 254720, 302480, 483968, 509440, 604960, 967936, 1018880, 1209920, 1935872, 2419840, 3871744, 4839680, 9679360, 19358720]

約数ペア:

[(1, 19358720), (2, 9679360), (4, 4839680), (5, 3871744), (8, 2419840), (10, 1935872), (16, 1209920), (19, 1018880), (20, 967936), (32, 604960), (38, 509440), (40, 483968), (64, 302480), (76, 254720), (80, 241984), (95, 203776), (128, 151240), (152, 127360), (160, 120992), (190, 101888), (199, 97280), (256, 75620), (304, 63680), (320, 60496), (380, 50944), (398, 48640), (512, 37810), (608, 31840), (640, 30248), (760, 25472), (796, 24320), (995, 19456), (1024, 18905), (1216, 15920), (1280, 15124), (1520, 12736), (1592, 12160), (1990, 9728), (2432, 7960), (2560, 7562), (3040, 6368), (3184, 6080), (3781, 5120), (3980, 4864)]