21452000

素因数分解:

$2^5\times 5^3\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 54722304

約数和(自身を除く): 33270304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 173, 200, 248, 250, 310, 346, 400, 496, 500, 620, 692, 775, 800, 865, 992, 1000, 1240, 1384, 1550, 1730, 2000, 2480, 2768, 3100, 3460, 3875, 4000, 4325, 4960, 5363, 5536, 6200, 6920, 7750, 8650, 10726, 12400, 13840, 15500, 17300, 21452, 21625, 24800, 26815, 27680, 31000, 34600, 42904, 43250, 53630, 62000, 69200, 85808, 86500, 107260, 124000, 134075, 138400, 171616, 173000, 214520, 268150, 346000, 429040, 536300, 670375, 692000, 858080, 1072600, 1340750, 2145200, 2681500, 4290400, 5363000, 10726000, 21452000]

約数ペア:

[(1, 21452000), (2, 10726000), (4, 5363000), (5, 4290400), (8, 2681500), (10, 2145200), (16, 1340750), (20, 1072600), (25, 858080), (31, 692000), (32, 670375), (40, 536300), (50, 429040), (62, 346000), (80, 268150), (100, 214520), (124, 173000), (125, 171616), (155, 138400), (160, 134075), (173, 124000), (200, 107260), (248, 86500), (250, 85808), (310, 69200), (346, 62000), (400, 53630), (496, 43250), (500, 42904), (620, 34600), (692, 31000), (775, 27680), (800, 26815), (865, 24800), (992, 21625), (1000, 21452), (1240, 17300), (1384, 15500), (1550, 13840), (1730, 12400), (2000, 10726), (2480, 8650), (2768, 7750), (3100, 6920), (3460, 6200), (3875, 5536), (4000, 5363), (4325, 4960)]