205129480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:359

約数の個数: 128

約数和(自身を含む): 520058880

約数和(自身を除く): 314929400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 37, 40, 62, 68, 74, 85, 124, 136, 148, 155, 170, 185, 248, 263, 296, 310, 340, 370, 526, 527, 620, 629, 680, 740, 1052, 1054, 1147, 1240, 1258, 1315, 1480, 2104, 2108, 2294, 2516, 2630, 2635, 3145, 4216, 4471, 4588, 5032, 5260, 5270, 5735, 6290, 8153, 8942, 9176, 9731, 10520, 10540, 11470, 12580, 16306, 17884, 19462, 19499, 21080, 22355, 22940, 25160, 32612, 35768, 38924, 38998, 40765, 44710, 45880, 48655, 65224, 77848, 77996, 81530, 89420, 97310, 97495, 138601, 155992, 163060, 165427, 178840, 194620, 194990, 277202, 301661, 326120, 330854, 389240, 389980, 554404, 603322, 661708, 693005, 779960, 827135, 1108808, 1206644, 1323416, 1386010, 1508305, 1654270, 2413288, 2772020, 3016610, 3308540, 5128237, 5544040, 6033220, 6617080, 10256474, 12066440, 20512948, 25641185, 41025896, 51282370, 102564740, 205129480]

約数ペア:

[(1, 205129480), (2, 102564740), (4, 51282370), (5, 41025896), (8, 25641185), (10, 20512948), (17, 12066440), (20, 10256474), (31, 6617080), (34, 6033220), (37, 5544040), (40, 5128237), (62, 3308540), (68, 3016610), (74, 2772020), (85, 2413288), (124, 1654270), (136, 1508305), (148, 1386010), (155, 1323416), (170, 1206644), (185, 1108808), (248, 827135), (263, 779960), (296, 693005), (310, 661708), (340, 603322), (370, 554404), (526, 389980), (527, 389240), (620, 330854), (629, 326120), (680, 301661), (740, 277202), (1052, 194990), (1054, 194620), (1147, 178840), (1240, 165427), (1258, 163060), (1315, 155992), (1480, 138601), (2104, 97495), (2108, 97310), (2294, 89420), (2516, 81530), (2630, 77996), (2635, 77848), (3145, 65224), (4216, 48655), (4471, 45880), (4588, 44710), (5032, 40765), (5260, 38998), (5270, 38924), (5735, 35768), (6290, 32612), (8153, 25160), (8942, 22940), (9176, 22355), (9731, 21080), (10520, 19499), (10540, 19462), (11470, 17884), (12580, 16306)]