639287760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:865

約数の個数: 160

約数和(自身を含む): 2082723840

約数和(自身を除く): 1443436080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 179, 184, 230, 240, 276, 345, 358, 368, 460, 537, 552, 647, 690, 716, 895, 920, 1074, 1104, 1294, 1380, 1432, 1790, 1840, 1941, 2148, 2588, 2685, 2760, 2864, 3235, 3580, 3882, 4117, 4296, 5176, 5370, 5520, 6470, 7160, 7764, 8234, 8592, 9705, 10352, 10740, 12351, 12940, 14320, 14881, 15528, 16468, 19410, 20585, 21480, 24702, 25880, 29762, 31056, 32936, 38820, 41170, 42960, 44643, 49404, 51760, 59524, 61755, 65872, 74405, 77640, 82340, 89286, 98808, 115813, 119048, 123510, 148810, 155280, 164680, 178572, 197616, 223215, 231626, 238096, 247020, 297620, 329360, 347439, 357144, 446430, 463252, 494040, 579065, 595240, 694878, 714288, 892860, 926504, 988080, 1158130, 1190480, 1389756, 1737195, 1785720, 1853008, 2316260, 2663699, 2779512, 3474390, 3571440, 4632520, 5327398, 5559024, 6948780, 7991097, 9265040, 10654796, 13318495, 13897560, 15982194, 21309592, 26636990, 27795120, 31964388, 39955485, 42619184, 53273980, 63928776, 79910970, 106547960, 127857552, 159821940, 213095920, 319643880, 639287760]

約数ペア:

[(1, 639287760), (2, 319643880), (3, 213095920), (4, 159821940), (5, 127857552), (6, 106547960), (8, 79910970), (10, 63928776), (12, 53273980), (15, 42619184), (16, 39955485), (20, 31964388), (23, 27795120), (24, 26636990), (30, 21309592), (40, 15982194), (46, 13897560), (48, 13318495), (60, 10654796), (69, 9265040), (80, 7991097), (92, 6948780), (115, 5559024), (120, 5327398), (138, 4632520), (179, 3571440), (184, 3474390), (230, 2779512), (240, 2663699), (276, 2316260), (345, 1853008), (358, 1785720), (368, 1737195), (460, 1389756), (537, 1190480), (552, 1158130), (647, 988080), (690, 926504), (716, 892860), (895, 714288), (920, 694878), (1074, 595240), (1104, 579065), (1294, 494040), (1380, 463252), (1432, 446430), (1790, 357144), (1840, 347439), (1941, 329360), (2148, 297620), (2588, 247020), (2685, 238096), (2760, 231626), (2864, 223215), (3235, 197616), (3580, 178572), (3882, 164680), (4117, 155280), (4296, 148810), (5176, 123510), (5370, 119048), (5520, 115813), (6470, 98808), (7160, 89286), (7764, 82340), (8234, 77640), (8592, 74405), (9705, 65872), (10352, 61755), (10740, 59524), (12351, 51760), (12940, 49404), (14320, 44643), (14881, 42960), (15528, 41170), (16468, 38820), (19410, 32936), (20585, 31056), (21480, 29762), (24702, 25880)]