28688730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2039}}^1$

素因数の和:2123

約数の個数: 64

約数和(自身を含む): 79902720

約数和(自身を除く): 51213990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 67, 70, 105, 134, 201, 210, 335, 402, 469, 670, 938, 1005, 1407, 2010, 2039, 2345, 2814, 4078, 4690, 6117, 7035, 10195, 12234, 14070, 14273, 20390, 28546, 30585, 42819, 61170, 71365, 85638, 136613, 142730, 214095, 273226, 409839, 428190, 683065, 819678, 956291, 1366130, 1912582, 2049195, 2868873, 4098390, 4781455, 5737746, 9562910, 14344365, 28688730]

約数ペア:

[(1, 28688730), (2, 14344365), (3, 9562910), (5, 5737746), (6, 4781455), (7, 4098390), (10, 2868873), (14, 2049195), (15, 1912582), (21, 1366130), (30, 956291), (35, 819678), (42, 683065), (67, 428190), (70, 409839), (105, 273226), (134, 214095), (201, 142730), (210, 136613), (335, 85638), (402, 71365), (469, 61170), (670, 42819), (938, 30585), (1005, 28546), (1407, 20390), (2010, 14273), (2039, 14070), (2345, 12234), (2814, 10195), (4078, 7035), (4690, 6117)]