28716870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 128

約数和(自身を含む): 86639616

約数和(自身を除く): 57922746

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 67, 70, 78, 91, 105, 130, 134, 157, 182, 195, 201, 210, 273, 314, 335, 390, 402, 455, 469, 471, 546, 670, 785, 871, 910, 938, 942, 1005, 1099, 1365, 1407, 1570, 1742, 2010, 2041, 2198, 2345, 2355, 2613, 2730, 2814, 3297, 4082, 4355, 4690, 4710, 5226, 5495, 6097, 6123, 6594, 7035, 8710, 10205, 10519, 10990, 12194, 12246, 13065, 14070, 14287, 16485, 18291, 20410, 21038, 26130, 28574, 30485, 30615, 31557, 32970, 36582, 42861, 52595, 60970, 61230, 63114, 71435, 73633, 85722, 91455, 105190, 136747, 142870, 147266, 157785, 182910, 214305, 220899, 273494, 315570, 368165, 410241, 428610, 441798, 683735, 736330, 820482, 957229, 1104495, 1367470, 1914458, 2051205, 2208990, 2871687, 4102410, 4786145, 5743374, 9572290, 14358435, 28716870]

約数ペア:

[(1, 28716870), (2, 14358435), (3, 9572290), (5, 5743374), (6, 4786145), (7, 4102410), (10, 2871687), (13, 2208990), (14, 2051205), (15, 1914458), (21, 1367470), (26, 1104495), (30, 957229), (35, 820482), (39, 736330), (42, 683735), (65, 441798), (67, 428610), (70, 410241), (78, 368165), (91, 315570), (105, 273494), (130, 220899), (134, 214305), (157, 182910), (182, 157785), (195, 147266), (201, 142870), (210, 136747), (273, 105190), (314, 91455), (335, 85722), (390, 73633), (402, 71435), (455, 63114), (469, 61230), (471, 60970), (546, 52595), (670, 42861), (785, 36582), (871, 32970), (910, 31557), (938, 30615), (942, 30485), (1005, 28574), (1099, 26130), (1365, 21038), (1407, 20410), (1570, 18291), (1742, 16485), (2010, 14287), (2041, 14070), (2198, 13065), (2345, 12246), (2355, 12194), (2613, 10990), (2730, 10519), (2814, 10205), (3297, 8710), (4082, 7035), (4355, 6594), (4690, 6123), (4710, 6097), (5226, 5495)]