20228966775

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{491}}^1\times {\mathrm{2579}}^1$

素因数の和:3157

約数の個数: 72

約数和(自身を含む): 36831749760

約数和(自身を除く): 16602782985

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 491, 639, 1065, 1473, 1775, 2455, 2579, 3195, 4419, 5325, 7365, 7737, 12275, 12895, 15975, 22095, 23211, 34861, 36825, 38685, 64475, 104583, 110475, 116055, 174305, 183109, 193425, 313749, 522915, 549327, 580275, 871525, 915545, 1266289, 1568745, 1647981, 2614575, 2746635, 3798867, 4577725, 6331445, 7843725, 8239905, 11396601, 13733175, 18994335, 31657225, 41199525, 56983005, 89906519, 94971675, 269719557, 284915025, 449532595, 809158671, 1348597785, 2247662975, 4045793355, 6742988925, 20228966775]

約数ペア:

[(1, 20228966775), (3, 6742988925), (5, 4045793355), (9, 2247662975), (15, 1348597785), (25, 809158671), (45, 449532595), (71, 284915025), (75, 269719557), (213, 94971675), (225, 89906519), (355, 56983005), (491, 41199525), (639, 31657225), (1065, 18994335), (1473, 13733175), (1775, 11396601), (2455, 8239905), (2579, 7843725), (3195, 6331445), (4419, 4577725), (5325, 3798867), (7365, 2746635), (7737, 2614575), (12275, 1647981), (12895, 1568745), (15975, 1266289), (22095, 915545), (23211, 871525), (34861, 580275), (36825, 549327), (38685, 522915), (64475, 313749), (104583, 193425), (110475, 183109), (116055, 174305)]