81542080

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 112

約数和(自身を含む): 204313536

約数和(自身を除く): 122771456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 71, 74, 80, 97, 142, 148, 160, 185, 194, 284, 296, 320, 355, 370, 388, 485, 568, 592, 710, 740, 776, 970, 1136, 1184, 1420, 1480, 1552, 1940, 2272, 2368, 2627, 2840, 2960, 3104, 3589, 3880, 4544, 5254, 5680, 5920, 6208, 6887, 7178, 7760, 10508, 11360, 11840, 13135, 13774, 14356, 15520, 17945, 21016, 22720, 26270, 27548, 28712, 31040, 34435, 35890, 42032, 52540, 55096, 57424, 68870, 71780, 84064, 105080, 110192, 114848, 137740, 143560, 168128, 210160, 220384, 229696, 254819, 275480, 287120, 420320, 440768, 509638, 550960, 574240, 840640, 1019276, 1101920, 1148480, 1274095, 2038552, 2203840, 2548190, 4077104, 5096380, 8154208, 10192760, 16308416, 20385520, 40771040, 81542080]

約数ペア:

[(1, 81542080), (2, 40771040), (4, 20385520), (5, 16308416), (8, 10192760), (10, 8154208), (16, 5096380), (20, 4077104), (32, 2548190), (37, 2203840), (40, 2038552), (64, 1274095), (71, 1148480), (74, 1101920), (80, 1019276), (97, 840640), (142, 574240), (148, 550960), (160, 509638), (185, 440768), (194, 420320), (284, 287120), (296, 275480), (320, 254819), (355, 229696), (370, 220384), (388, 210160), (485, 168128), (568, 143560), (592, 137740), (710, 114848), (740, 110192), (776, 105080), (970, 84064), (1136, 71780), (1184, 68870), (1420, 57424), (1480, 55096), (1552, 52540), (1940, 42032), (2272, 35890), (2368, 34435), (2627, 31040), (2840, 28712), (2960, 27548), (3104, 26270), (3589, 22720), (3880, 21016), (4544, 17945), (5254, 15520), (5680, 14356), (5920, 13774), (6208, 13135), (6887, 11840), (7178, 11360), (7760, 10508)]