82725760

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 217798560

約数和(自身を除く): 135072800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 128, 130, 160, 163, 208, 244, 260, 305, 320, 326, 416, 488, 520, 610, 640, 652, 793, 815, 832, 976, 1040, 1220, 1304, 1586, 1630, 1664, 1952, 2080, 2119, 2440, 2608, 3172, 3260, 3904, 3965, 4160, 4238, 4880, 5216, 6344, 6520, 7808, 7930, 8320, 8476, 9760, 9943, 10432, 10595, 12688, 13040, 15860, 16952, 19520, 19886, 20864, 21190, 25376, 26080, 31720, 33904, 39040, 39772, 42380, 49715, 50752, 52160, 63440, 67808, 79544, 84760, 99430, 101504, 104320, 126880, 129259, 135616, 159088, 169520, 198860, 253760, 258518, 271232, 318176, 339040, 397720, 507520, 517036, 636352, 646295, 678080, 795440, 1034072, 1272704, 1292590, 1356160, 1590880, 2068144, 2585180, 3181760, 4136288, 5170360, 6363520, 8272576, 10340720, 16545152, 20681440, 41362880, 82725760]

約数ペア:

[(1, 82725760), (2, 41362880), (4, 20681440), (5, 16545152), (8, 10340720), (10, 8272576), (13, 6363520), (16, 5170360), (20, 4136288), (26, 3181760), (32, 2585180), (40, 2068144), (52, 1590880), (61, 1356160), (64, 1292590), (65, 1272704), (80, 1034072), (104, 795440), (122, 678080), (128, 646295), (130, 636352), (160, 517036), (163, 507520), (208, 397720), (244, 339040), (260, 318176), (305, 271232), (320, 258518), (326, 253760), (416, 198860), (488, 169520), (520, 159088), (610, 135616), (640, 129259), (652, 126880), (793, 104320), (815, 101504), (832, 99430), (976, 84760), (1040, 79544), (1220, 67808), (1304, 63440), (1586, 52160), (1630, 50752), (1664, 49715), (1952, 42380), (2080, 39772), (2119, 39040), (2440, 33904), (2608, 31720), (3172, 26080), (3260, 25376), (3904, 21190), (3965, 20864), (4160, 19886), (4238, 19520), (4880, 16952), (5216, 15860), (6344, 13040), (6520, 12688), (7808, 10595), (7930, 10432), (8320, 9943), (8476, 9760)]