2045440

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:87

約数の個数: 80

約数和(自身を含む): 5303232

約数和(自身を除く): 3257792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 64, 68, 80, 85, 94, 128, 136, 160, 170, 188, 235, 256, 272, 320, 340, 376, 470, 512, 544, 640, 680, 752, 799, 940, 1088, 1280, 1360, 1504, 1598, 1880, 2176, 2560, 2720, 3008, 3196, 3760, 3995, 4352, 5440, 6016, 6392, 7520, 7990, 8704, 10880, 12032, 12784, 15040, 15980, 21760, 24064, 25568, 30080, 31960, 43520, 51136, 60160, 63920, 102272, 120320, 127840, 204544, 255680, 409088, 511360, 1022720, 2045440]

約数ペア:

[(1, 2045440), (2, 1022720), (4, 511360), (5, 409088), (8, 255680), (10, 204544), (16, 127840), (17, 120320), (20, 102272), (32, 63920), (34, 60160), (40, 51136), (47, 43520), (64, 31960), (68, 30080), (80, 25568), (85, 24064), (94, 21760), (128, 15980), (136, 15040), (160, 12784), (170, 12032), (188, 10880), (235, 8704), (256, 7990), (272, 7520), (320, 6392), (340, 6016), (376, 5440), (470, 4352), (512, 3995), (544, 3760), (640, 3196), (680, 3008), (752, 2720), (799, 2560), (940, 2176), (1088, 1880), (1280, 1598), (1360, 1504)]