321720160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{105829}}^1$

素因数の和:105863

約数の個数: 48

約数和(自身を含む): 800074800

約数和(自身を除く): 478354640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 105829, 211658, 423316, 529145, 846632, 1058290, 1693264, 2010751, 2116580, 3386528, 4021502, 4233160, 8043004, 8466320, 10053755, 16086008, 16932640, 20107510, 32172016, 40215020, 64344032, 80430040, 160860080, 321720160]

約数ペア:

[(1, 321720160), (2, 160860080), (4, 80430040), (5, 64344032), (8, 40215020), (10, 32172016), (16, 20107510), (19, 16932640), (20, 16086008), (32, 10053755), (38, 8466320), (40, 8043004), (76, 4233160), (80, 4021502), (95, 3386528), (152, 2116580), (160, 2010751), (190, 1693264), (304, 1058290), (380, 846632), (608, 529145), (760, 423316), (1520, 211658), (3040, 105829)]