66645280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^2$

素因数の和:386

約数の個数: 72

約数和(自身を含む): 170513532

約数和(自身を除く): 103868252

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 179, 208, 260, 358, 416, 520, 716, 895, 1040, 1432, 1790, 2080, 2327, 2864, 3580, 4654, 5728, 7160, 9308, 11635, 14320, 18616, 23270, 28640, 32041, 37232, 46540, 64082, 74464, 93080, 128164, 160205, 186160, 256328, 320410, 372320, 416533, 512656, 640820, 833066, 1025312, 1281640, 1666132, 2082665, 2563280, 3332264, 4165330, 5126560, 6664528, 8330660, 13329056, 16661320, 33322640, 66645280]

約数ペア:

[(1, 66645280), (2, 33322640), (4, 16661320), (5, 13329056), (8, 8330660), (10, 6664528), (13, 5126560), (16, 4165330), (20, 3332264), (26, 2563280), (32, 2082665), (40, 1666132), (52, 1281640), (65, 1025312), (80, 833066), (104, 640820), (130, 512656), (160, 416533), (179, 372320), (208, 320410), (260, 256328), (358, 186160), (416, 160205), (520, 128164), (716, 93080), (895, 74464), (1040, 64082), (1432, 46540), (1790, 37232), (2080, 32041), (2327, 28640), (2864, 23270), (3580, 18616), (4654, 14320), (5728, 11635), (7160, 9308)]