1821701840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{36551}}^1$

素因数の和:36660

約数の個数: 80

約数和(自身を含む): 4895043840

約数和(自身を除く): 3073342000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1780, 2492, 3115, 3560, 4984, 6230, 7120, 9968, 12460, 24920, 36551, 49840, 73102, 146204, 182755, 255857, 292408, 365510, 511714, 584816, 731020, 1023428, 1279285, 1462040, 2046856, 2558570, 2924080, 3253039, 4093712, 5117140, 6506078, 10234280, 13012156, 16265195, 20468560, 22771273, 26024312, 32530390, 45542546, 52048624, 65060780, 91085092, 113856365, 130121560, 182170184, 227712730, 260243120, 364340368, 455425460, 910850920, 1821701840]

約数ペア:

[(1, 1821701840), (2, 910850920), (4, 455425460), (5, 364340368), (7, 260243120), (8, 227712730), (10, 182170184), (14, 130121560), (16, 113856365), (20, 91085092), (28, 65060780), (35, 52048624), (40, 45542546), (56, 32530390), (70, 26024312), (80, 22771273), (89, 20468560), (112, 16265195), (140, 13012156), (178, 10234280), (280, 6506078), (356, 5117140), (445, 4093712), (560, 3253039), (623, 2924080), (712, 2558570), (890, 2046856), (1246, 1462040), (1424, 1279285), (1780, 1023428), (2492, 731020), (3115, 584816), (3560, 511714), (4984, 365510), (6230, 292408), (7120, 255857), (9968, 182755), (12460, 146204), (24920, 73102), (36551, 49840)]