21972800

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:496

約数の個数: 84

約数和(自身を含む): 55936896

約数和(自身を除く): 33964096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 443, 496, 620, 775, 800, 886, 992, 1240, 1550, 1600, 1772, 1984, 2215, 2480, 3100, 3544, 4430, 4960, 6200, 7088, 8860, 9920, 11075, 12400, 13733, 14176, 17720, 22150, 24800, 27466, 28352, 35440, 44300, 49600, 54932, 68665, 70880, 88600, 109864, 137330, 141760, 177200, 219728, 274660, 343325, 354400, 439456, 549320, 686650, 708800, 878912, 1098640, 1373300, 2197280, 2746600, 4394560, 5493200, 10986400, 21972800]

約数ペア:

[(1, 21972800), (2, 10986400), (4, 5493200), (5, 4394560), (8, 2746600), (10, 2197280), (16, 1373300), (20, 1098640), (25, 878912), (31, 708800), (32, 686650), (40, 549320), (50, 439456), (62, 354400), (64, 343325), (80, 274660), (100, 219728), (124, 177200), (155, 141760), (160, 137330), (200, 109864), (248, 88600), (310, 70880), (320, 68665), (400, 54932), (443, 49600), (496, 44300), (620, 35440), (775, 28352), (800, 27466), (886, 24800), (992, 22150), (1240, 17720), (1550, 14176), (1600, 13733), (1772, 12400), (1984, 11075), (2215, 9920), (2480, 8860), (3100, 7088), (3544, 6200), (4430, 4960)]