20512128984

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{4217}}^1\times {\mathrm{10667}}^1$

素因数の和:14912

約数の個数: 64

約数和(自身を含む): 53997148800

約数和(自身を除く): 33485019816

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456, 4217, 8434, 10667, 12651, 16868, 21334, 25302, 32001, 33736, 42668, 50604, 64002, 80123, 85336, 101208, 128004, 160246, 202673, 240369, 256008, 320492, 405346, 480738, 608019, 640984, 810692, 961476, 1216038, 1621384, 1922952, 2432076, 4864152, 44982739, 89965478, 134948217, 179930956, 269896434, 359861912, 539792868, 854672041, 1079585736, 1709344082, 2564016123, 3418688164, 5128032246, 6837376328, 10256064492, 20512128984]

約数ペア:

[(1, 20512128984), (2, 10256064492), (3, 6837376328), (4, 5128032246), (6, 3418688164), (8, 2564016123), (12, 1709344082), (19, 1079585736), (24, 854672041), (38, 539792868), (57, 359861912), (76, 269896434), (114, 179930956), (152, 134948217), (228, 89965478), (456, 44982739), (4217, 4864152), (8434, 2432076), (10667, 1922952), (12651, 1621384), (16868, 1216038), (21334, 961476), (25302, 810692), (32001, 640984), (33736, 608019), (42668, 480738), (50604, 405346), (64002, 320492), (80123, 256008), (85336, 240369), (101208, 202673), (128004, 160246)]