440402560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1306

約数の個数: 128

約数和(自身を含む): 1161135360

約数和(自身を除く): 720732800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 128, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 520, 559, 640, 688, 832, 860, 1040, 1118, 1231, 1376, 1664, 1720, 2080, 2236, 2462, 2752, 2795, 3440, 4160, 4472, 4924, 5504, 5590, 6155, 6880, 8320, 8944, 9848, 11180, 12310, 13760, 16003, 17888, 19696, 22360, 24620, 27520, 32006, 35776, 39392, 44720, 49240, 52933, 64012, 71552, 78784, 80015, 89440, 98480, 105866, 128024, 157568, 160030, 178880, 196960, 211732, 256048, 264665, 320060, 357760, 393920, 423464, 512096, 529330, 640120, 688129, 787840, 846928, 1024192, 1058660, 1280240, 1376258, 1693856, 2048384, 2117320, 2560480, 2752516, 3387712, 3440645, 4234640, 5120960, 5505032, 6775424, 6881290, 8469280, 10241920, 11010064, 13762580, 16938560, 22020128, 27525160, 33877120, 44040256, 55050320, 88080512, 110100640, 220201280, 440402560]

約数ペア:

[(1, 440402560), (2, 220201280), (4, 110100640), (5, 88080512), (8, 55050320), (10, 44040256), (13, 33877120), (16, 27525160), (20, 22020128), (26, 16938560), (32, 13762580), (40, 11010064), (43, 10241920), (52, 8469280), (64, 6881290), (65, 6775424), (80, 5505032), (86, 5120960), (104, 4234640), (128, 3440645), (130, 3387712), (160, 2752516), (172, 2560480), (208, 2117320), (215, 2048384), (260, 1693856), (320, 1376258), (344, 1280240), (416, 1058660), (430, 1024192), (520, 846928), (559, 787840), (640, 688129), (688, 640120), (832, 529330), (860, 512096), (1040, 423464), (1118, 393920), (1231, 357760), (1376, 320060), (1664, 264665), (1720, 256048), (2080, 211732), (2236, 196960), (2462, 178880), (2752, 160030), (2795, 157568), (3440, 128024), (4160, 105866), (4472, 98480), (4924, 89440), (5504, 80015), (5590, 78784), (6155, 71552), (6880, 64012), (8320, 52933), (8944, 49240), (9848, 44720), (11180, 39392), (12310, 35776), (13760, 32006), (16003, 27520), (17888, 24620), (19696, 22360)]