207940720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1117}}^1$

素因数の和:1322

約数の個数: 80

約数和(自身を含む): 524028960

約数和(自身を除く): 316088240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 179, 208, 260, 358, 520, 716, 895, 1040, 1117, 1432, 1790, 2234, 2327, 2864, 3580, 4468, 4654, 5585, 7160, 8936, 9308, 11170, 11635, 14320, 14521, 17872, 18616, 22340, 23270, 29042, 37232, 44680, 46540, 58084, 72605, 89360, 93080, 116168, 145210, 186160, 199943, 232336, 290420, 399886, 580840, 799772, 999715, 1161680, 1599544, 1999430, 2599259, 3199088, 3998860, 5198518, 7997720, 10397036, 12996295, 15995440, 20794072, 25992590, 41588144, 51985180, 103970360, 207940720]

約数ペア:

[(1, 207940720), (2, 103970360), (4, 51985180), (5, 41588144), (8, 25992590), (10, 20794072), (13, 15995440), (16, 12996295), (20, 10397036), (26, 7997720), (40, 5198518), (52, 3998860), (65, 3199088), (80, 2599259), (104, 1999430), (130, 1599544), (179, 1161680), (208, 999715), (260, 799772), (358, 580840), (520, 399886), (716, 290420), (895, 232336), (1040, 199943), (1117, 186160), (1432, 145210), (1790, 116168), (2234, 93080), (2327, 89360), (2864, 72605), (3580, 58084), (4468, 46540), (4654, 44680), (5585, 37232), (7160, 29042), (8936, 23270), (9308, 22340), (11170, 18616), (11635, 17872), (14320, 14521)]