19877200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 56583680

約数和(自身を除く): 36706480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 175, 200, 217, 229, 248, 280, 310, 350, 400, 434, 458, 496, 560, 620, 700, 775, 868, 916, 1085, 1145, 1240, 1400, 1550, 1603, 1736, 1832, 2170, 2290, 2480, 2800, 3100, 3206, 3472, 3664, 4340, 4580, 5425, 5725, 6200, 6412, 7099, 8015, 8680, 9160, 10850, 11450, 12400, 12824, 14198, 16030, 17360, 18320, 21700, 22900, 25648, 28396, 32060, 35495, 40075, 43400, 45800, 49693, 56792, 64120, 70990, 80150, 86800, 91600, 99386, 113584, 128240, 141980, 160300, 177475, 198772, 248465, 283960, 320600, 354950, 397544, 496930, 567920, 641200, 709900, 795088, 993860, 1242325, 1419800, 1987720, 2484650, 2839600, 3975440, 4969300, 9938600, 19877200]

約数ペア:

[(1, 19877200), (2, 9938600), (4, 4969300), (5, 3975440), (7, 2839600), (8, 2484650), (10, 1987720), (14, 1419800), (16, 1242325), (20, 993860), (25, 795088), (28, 709900), (31, 641200), (35, 567920), (40, 496930), (50, 397544), (56, 354950), (62, 320600), (70, 283960), (80, 248465), (100, 198772), (112, 177475), (124, 160300), (140, 141980), (155, 128240), (175, 113584), (200, 99386), (217, 91600), (229, 86800), (248, 80150), (280, 70990), (310, 64120), (350, 56792), (400, 49693), (434, 45800), (458, 43400), (496, 40075), (560, 35495), (620, 32060), (700, 28396), (775, 25648), (868, 22900), (916, 21700), (1085, 18320), (1145, 17360), (1240, 16030), (1400, 14198), (1550, 12824), (1603, 12400), (1736, 11450), (1832, 10850), (2170, 9160), (2290, 8680), (2480, 8015), (2800, 7099), (3100, 6412), (3206, 6200), (3472, 5725), (3664, 5425), (4340, 4580)]