81698640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 266649600

約数和(自身を除く): 184950960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 79, 80, 93, 120, 124, 139, 155, 158, 186, 237, 240, 248, 278, 310, 316, 372, 395, 417, 465, 474, 496, 556, 620, 632, 695, 744, 790, 834, 930, 948, 1112, 1185, 1240, 1264, 1390, 1488, 1580, 1668, 1860, 1896, 2085, 2224, 2370, 2449, 2480, 2780, 3160, 3336, 3720, 3792, 4170, 4309, 4740, 4898, 5560, 6320, 6672, 7347, 7440, 8340, 8618, 9480, 9796, 10981, 11120, 12245, 12927, 14694, 16680, 17236, 18960, 19592, 21545, 21962, 24490, 25854, 29388, 32943, 33360, 34472, 36735, 39184, 43090, 43924, 48980, 51708, 54905, 58776, 64635, 65886, 68944, 73470, 86180, 87848, 97960, 103416, 109810, 117552, 129270, 131772, 146940, 164715, 172360, 175696, 195920, 206832, 219620, 258540, 263544, 293880, 329430, 340411, 344720, 439240, 517080, 527088, 587760, 658860, 680822, 878480, 1021233, 1034160, 1317720, 1361644, 1702055, 2042466, 2635440, 2723288, 3404110, 4084932, 5106165, 5446576, 6808220, 8169864, 10212330, 13616440, 16339728, 20424660, 27232880, 40849320, 81698640]

約数ペア:

[(1, 81698640), (2, 40849320), (3, 27232880), (4, 20424660), (5, 16339728), (6, 13616440), (8, 10212330), (10, 8169864), (12, 6808220), (15, 5446576), (16, 5106165), (20, 4084932), (24, 3404110), (30, 2723288), (31, 2635440), (40, 2042466), (48, 1702055), (60, 1361644), (62, 1317720), (79, 1034160), (80, 1021233), (93, 878480), (120, 680822), (124, 658860), (139, 587760), (155, 527088), (158, 517080), (186, 439240), (237, 344720), (240, 340411), (248, 329430), (278, 293880), (310, 263544), (316, 258540), (372, 219620), (395, 206832), (417, 195920), (465, 175696), (474, 172360), (496, 164715), (556, 146940), (620, 131772), (632, 129270), (695, 117552), (744, 109810), (790, 103416), (834, 97960), (930, 87848), (948, 86180), (1112, 73470), (1185, 68944), (1240, 65886), (1264, 64635), (1390, 58776), (1488, 54905), (1580, 51708), (1668, 48980), (1860, 43924), (1896, 43090), (2085, 39184), (2224, 36735), (2370, 34472), (2449, 33360), (2480, 32943), (2780, 29388), (3160, 25854), (3336, 24490), (3720, 21962), (3792, 21545), (4170, 19592), (4309, 18960), (4740, 17236), (4898, 16680), (5560, 14694), (6320, 12927), (6672, 12245), (7347, 11120), (7440, 10981), (8340, 9796), (8618, 9480)]