81880260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:546

約数の個数: 192

約数和(自身を含む): 294174720

約数和(自身を除く): 212294460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 37, 42, 44, 55, 60, 66, 70, 74, 77, 84, 105, 110, 111, 132, 140, 148, 154, 165, 185, 210, 220, 222, 231, 259, 308, 330, 370, 385, 407, 420, 444, 462, 479, 518, 555, 660, 740, 770, 777, 814, 924, 958, 1036, 1110, 1155, 1221, 1295, 1437, 1540, 1554, 1628, 1916, 2035, 2220, 2310, 2395, 2442, 2590, 2849, 2874, 3108, 3353, 3885, 4070, 4620, 4790, 4884, 5180, 5269, 5698, 5748, 6105, 6706, 7185, 7770, 8140, 8547, 9580, 10059, 10538, 11396, 12210, 13412, 14245, 14370, 15540, 15807, 16765, 17094, 17723, 20118, 21076, 24420, 26345, 28490, 28740, 31614, 33530, 34188, 35446, 36883, 40236, 42735, 50295, 52690, 53169, 56980, 63228, 67060, 70892, 73766, 79035, 85470, 88615, 100590, 105380, 106338, 110649, 124061, 147532, 158070, 170940, 177230, 184415, 194953, 201180, 212676, 221298, 248122, 265845, 316140, 354460, 368830, 372183, 389906, 442596, 496244, 531690, 553245, 584859, 620305, 737660, 744366, 779812, 974765, 1063380, 1106490, 1169718, 1240610, 1364671, 1488732, 1860915, 1949530, 2212980, 2339436, 2481220, 2729342, 2924295, 3721830, 3899060, 4094013, 5458684, 5848590, 6823355, 7443660, 8188026, 11697180, 13646710, 16376052, 20470065, 27293420, 40940130, 81880260]

約数ペア:

[(1, 81880260), (2, 40940130), (3, 27293420), (4, 20470065), (5, 16376052), (6, 13646710), (7, 11697180), (10, 8188026), (11, 7443660), (12, 6823355), (14, 5848590), (15, 5458684), (20, 4094013), (21, 3899060), (22, 3721830), (28, 2924295), (30, 2729342), (33, 2481220), (35, 2339436), (37, 2212980), (42, 1949530), (44, 1860915), (55, 1488732), (60, 1364671), (66, 1240610), (70, 1169718), (74, 1106490), (77, 1063380), (84, 974765), (105, 779812), (110, 744366), (111, 737660), (132, 620305), (140, 584859), (148, 553245), (154, 531690), (165, 496244), (185, 442596), (210, 389906), (220, 372183), (222, 368830), (231, 354460), (259, 316140), (308, 265845), (330, 248122), (370, 221298), (385, 212676), (407, 201180), (420, 194953), (444, 184415), (462, 177230), (479, 170940), (518, 158070), (555, 147532), (660, 124061), (740, 110649), (770, 106338), (777, 105380), (814, 100590), (924, 88615), (958, 85470), (1036, 79035), (1110, 73766), (1155, 70892), (1221, 67060), (1295, 63228), (1437, 56980), (1540, 53169), (1554, 52690), (1628, 50295), (1916, 42735), (2035, 40236), (2220, 36883), (2310, 35446), (2395, 34188), (2442, 33530), (2590, 31614), (2849, 28740), (2874, 28490), (3108, 26345), (3353, 24420), (3885, 21076), (4070, 20118), (4620, 17723), (4790, 17094), (4884, 16765), (5180, 15807), (5269, 15540), (5698, 14370), (5748, 14245), (6105, 13412), (6706, 12210), (7185, 11396), (7770, 10538), (8140, 10059), (8547, 9580)]