81355470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12497}}^1$

素因数の和:12545

約数の個数: 64

約数和(自身を含む): 230363136

約数和(自身を除く): 149007666

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 6510, 12497, 24994, 37491, 62485, 74982, 87479, 124970, 174958, 187455, 262437, 374910, 387407, 437395, 524874, 774814, 874790, 1162221, 1312185, 1937035, 2324442, 2624370, 2711849, 3874070, 5423698, 5811105, 8135547, 11622210, 13559245, 16271094, 27118490, 40677735, 81355470]

約数ペア:

[(1, 81355470), (2, 40677735), (3, 27118490), (5, 16271094), (6, 13559245), (7, 11622210), (10, 8135547), (14, 5811105), (15, 5423698), (21, 3874070), (30, 2711849), (31, 2624370), (35, 2324442), (42, 1937035), (62, 1312185), (70, 1162221), (93, 874790), (105, 774814), (155, 524874), (186, 437395), (210, 387407), (217, 374910), (310, 262437), (434, 187455), (465, 174958), (651, 124970), (930, 87479), (1085, 74982), (1302, 62485), (2170, 37491), (3255, 24994), (6510, 12497)]