18648320

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 47351304

約数和(自身を除く): 28702984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 857, 1088, 1280, 1360, 1714, 2176, 2720, 3428, 4285, 4352, 5440, 6856, 8570, 10880, 13712, 14569, 17140, 21760, 27424, 29138, 34280, 54848, 58276, 68560, 72845, 109696, 116552, 137120, 145690, 219392, 233104, 274240, 291380, 466208, 548480, 582760, 932416, 1096960, 1165520, 1864832, 2331040, 3729664, 4662080, 9324160, 18648320]

約数ペア:

[(1, 18648320), (2, 9324160), (4, 4662080), (5, 3729664), (8, 2331040), (10, 1864832), (16, 1165520), (17, 1096960), (20, 932416), (32, 582760), (34, 548480), (40, 466208), (64, 291380), (68, 274240), (80, 233104), (85, 219392), (128, 145690), (136, 137120), (160, 116552), (170, 109696), (256, 72845), (272, 68560), (320, 58276), (340, 54848), (544, 34280), (640, 29138), (680, 27424), (857, 21760), (1088, 17140), (1280, 14569), (1360, 13712), (1714, 10880), (2176, 8570), (2720, 6856), (3428, 5440), (4285, 4352)]