278370560

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16729}}^1$

素因数の和:16763

約数の個数: 72

約数和(自身を含む): 718118520

約数和(自身を除く): 439747960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 16729, 33458, 66916, 83645, 133832, 167290, 217477, 267664, 334580, 434954, 535328, 669160, 869908, 1070656, 1087385, 1338320, 1739816, 2141312, 2174770, 2676640, 3479632, 4282624, 4349540, 5353280, 6959264, 8699080, 10706560, 13918528, 17398160, 21413120, 27837056, 34796320, 55674112, 69592640, 139185280, 278370560]

約数ペア:

[(1, 278370560), (2, 139185280), (4, 69592640), (5, 55674112), (8, 34796320), (10, 27837056), (13, 21413120), (16, 17398160), (20, 13918528), (26, 10706560), (32, 8699080), (40, 6959264), (52, 5353280), (64, 4349540), (65, 4282624), (80, 3479632), (104, 2676640), (128, 2174770), (130, 2141312), (160, 1739816), (208, 1338320), (256, 1087385), (260, 1070656), (320, 869908), (416, 669160), (520, 535328), (640, 434954), (832, 334580), (1040, 267664), (1280, 217477), (1664, 167290), (2080, 133832), (3328, 83645), (4160, 66916), (8320, 33458), (16640, 16729)]