20050357840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{17341}}^1$

素因数の和:17600

約数の個数: 80

約数和(自身を含む): 47416496400

約数和(自身を除く): 27366138560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 149, 194, 298, 388, 485, 596, 745, 776, 970, 1192, 1490, 1552, 1940, 2384, 2980, 3880, 5960, 7760, 11920, 14453, 17341, 28906, 34682, 57812, 69364, 72265, 86705, 115624, 138728, 144530, 173410, 231248, 277456, 289060, 346820, 578120, 693640, 1156240, 1387280, 1682077, 2583809, 3364154, 5167618, 6728308, 8410385, 10335236, 12919045, 13456616, 16820770, 20670472, 25838090, 26913232, 33641540, 41340944, 51676180, 67283080, 103352360, 134566160, 206704720, 250629473, 501258946, 1002517892, 1253147365, 2005035784, 2506294730, 4010071568, 5012589460, 10025178920, 20050357840]

約数ペア:

[(1, 20050357840), (2, 10025178920), (4, 5012589460), (5, 4010071568), (8, 2506294730), (10, 2005035784), (16, 1253147365), (20, 1002517892), (40, 501258946), (80, 250629473), (97, 206704720), (149, 134566160), (194, 103352360), (298, 67283080), (388, 51676180), (485, 41340944), (596, 33641540), (745, 26913232), (776, 25838090), (970, 20670472), (1192, 16820770), (1490, 13456616), (1552, 12919045), (1940, 10335236), (2384, 8410385), (2980, 6728308), (3880, 5167618), (5960, 3364154), (7760, 2583809), (11920, 1682077), (14453, 1387280), (17341, 1156240), (28906, 693640), (34682, 578120), (57812, 346820), (69364, 289060), (72265, 277456), (86705, 231248), (115624, 173410), (138728, 144530)]