21179200

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 168

約数和(自身を含む): 62488064

約数和(自身を除く): 41308864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 61, 62, 64, 70, 80, 100, 112, 122, 124, 140, 155, 160, 175, 200, 217, 224, 244, 248, 280, 305, 310, 320, 350, 400, 427, 434, 448, 488, 496, 560, 610, 620, 700, 775, 800, 854, 868, 976, 992, 1085, 1120, 1220, 1240, 1400, 1525, 1550, 1600, 1708, 1736, 1891, 1952, 1984, 2135, 2170, 2240, 2440, 2480, 2800, 3050, 3100, 3416, 3472, 3782, 3904, 4270, 4340, 4880, 4960, 5425, 5600, 6100, 6200, 6832, 6944, 7564, 8540, 8680, 9455, 9760, 9920, 10675, 10850, 11200, 12200, 12400, 13237, 13664, 13888, 15128, 17080, 17360, 18910, 19520, 21350, 21700, 24400, 24800, 26474, 27328, 30256, 34160, 34720, 37820, 42700, 43400, 47275, 48800, 49600, 52948, 60512, 66185, 68320, 69440, 75640, 85400, 86800, 94550, 97600, 105896, 121024, 132370, 136640, 151280, 170800, 173600, 189100, 211792, 264740, 302560, 330925, 341600, 347200, 378200, 423584, 529480, 605120, 661850, 683200, 756400, 847168, 1058960, 1323700, 1512800, 2117920, 2647400, 3025600, 4235840, 5294800, 10589600, 21179200]

約数ペア:

[(1, 21179200), (2, 10589600), (4, 5294800), (5, 4235840), (7, 3025600), (8, 2647400), (10, 2117920), (14, 1512800), (16, 1323700), (20, 1058960), (25, 847168), (28, 756400), (31, 683200), (32, 661850), (35, 605120), (40, 529480), (50, 423584), (56, 378200), (61, 347200), (62, 341600), (64, 330925), (70, 302560), (80, 264740), (100, 211792), (112, 189100), (122, 173600), (124, 170800), (140, 151280), (155, 136640), (160, 132370), (175, 121024), (200, 105896), (217, 97600), (224, 94550), (244, 86800), (248, 85400), (280, 75640), (305, 69440), (310, 68320), (320, 66185), (350, 60512), (400, 52948), (427, 49600), (434, 48800), (448, 47275), (488, 43400), (496, 42700), (560, 37820), (610, 34720), (620, 34160), (700, 30256), (775, 27328), (800, 26474), (854, 24800), (868, 24400), (976, 21700), (992, 21350), (1085, 19520), (1120, 18910), (1220, 17360), (1240, 17080), (1400, 15128), (1525, 13888), (1550, 13664), (1600, 13237), (1708, 12400), (1736, 12200), (1891, 11200), (1952, 10850), (1984, 10675), (2135, 9920), (2170, 9760), (2240, 9455), (2440, 8680), (2480, 8540), (2800, 7564), (3050, 6944), (3100, 6832), (3416, 6200), (3472, 6100), (3782, 5600), (3904, 5425), (4270, 4960), (4340, 4880)]