128202880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:862

約数の個数: 128

約数和(自身を含む): 347860800

約数和(自身を除く): 219657920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 494, 520, 608, 640, 760, 811, 832, 988, 1040, 1216, 1235, 1520, 1622, 1664, 1976, 2080, 2432, 2470, 3040, 3244, 3952, 4055, 4160, 4940, 6080, 6488, 7904, 8110, 8320, 9880, 10543, 12160, 12976, 15409, 15808, 16220, 19760, 21086, 25952, 30818, 31616, 32440, 39520, 42172, 51904, 52715, 61636, 64880, 77045, 79040, 84344, 103808, 105430, 123272, 129760, 154090, 158080, 168688, 200317, 210860, 246544, 259520, 308180, 337376, 400634, 421720, 493088, 519040, 616360, 674752, 801268, 843440, 986176, 1001585, 1232720, 1349504, 1602536, 1686880, 1972352, 2003170, 2465440, 3205072, 3373760, 4006340, 4930880, 6410144, 6747520, 8012680, 9861760, 12820288, 16025360, 25640576, 32050720, 64101440, 128202880]

約数ペア:

[(1, 128202880), (2, 64101440), (4, 32050720), (5, 25640576), (8, 16025360), (10, 12820288), (13, 9861760), (16, 8012680), (19, 6747520), (20, 6410144), (26, 4930880), (32, 4006340), (38, 3373760), (40, 3205072), (52, 2465440), (64, 2003170), (65, 1972352), (76, 1686880), (80, 1602536), (95, 1349504), (104, 1232720), (128, 1001585), (130, 986176), (152, 843440), (160, 801268), (190, 674752), (208, 616360), (247, 519040), (260, 493088), (304, 421720), (320, 400634), (380, 337376), (416, 308180), (494, 259520), (520, 246544), (608, 210860), (640, 200317), (760, 168688), (811, 158080), (832, 154090), (988, 129760), (1040, 123272), (1216, 105430), (1235, 103808), (1520, 84344), (1622, 79040), (1664, 77045), (1976, 64880), (2080, 61636), (2432, 52715), (2470, 51904), (3040, 42172), (3244, 39520), (3952, 32440), (4055, 31616), (4160, 30818), (4940, 25952), (6080, 21086), (6488, 19760), (7904, 16220), (8110, 15808), (8320, 15409), (9880, 12976), (10543, 12160)]