20063960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 52081920

約数和(自身を除く): 32017960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 547, 655, 917, 1048, 1094, 1310, 1834, 2188, 2620, 2735, 3668, 3829, 4376, 4585, 5240, 5470, 7336, 7658, 9170, 10940, 15316, 18340, 19145, 21880, 30632, 36680, 38290, 71657, 76580, 143314, 153160, 286628, 358285, 501599, 573256, 716570, 1003198, 1433140, 2006396, 2507995, 2866280, 4012792, 5015990, 10031980, 20063960]

約数ペア:

[(1, 20063960), (2, 10031980), (4, 5015990), (5, 4012792), (7, 2866280), (8, 2507995), (10, 2006396), (14, 1433140), (20, 1003198), (28, 716570), (35, 573256), (40, 501599), (56, 358285), (70, 286628), (131, 153160), (140, 143314), (262, 76580), (280, 71657), (524, 38290), (547, 36680), (655, 30632), (917, 21880), (1048, 19145), (1094, 18340), (1310, 15316), (1834, 10940), (2188, 9170), (2620, 7658), (2735, 7336), (3668, 5470), (3829, 5240), (4376, 4585)]