20295800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 58311000

約数和(自身を除く): 38015200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 49, 50, 56, 70, 76, 95, 98, 100, 109, 133, 140, 152, 175, 190, 196, 200, 218, 245, 266, 280, 350, 380, 392, 436, 475, 490, 532, 545, 665, 700, 760, 763, 872, 931, 950, 980, 1064, 1090, 1225, 1330, 1400, 1526, 1862, 1900, 1960, 2071, 2180, 2450, 2660, 2725, 3052, 3325, 3724, 3800, 3815, 4142, 4360, 4655, 4900, 5320, 5341, 5450, 6104, 6650, 7448, 7630, 8284, 9310, 9800, 10355, 10682, 10900, 13300, 14497, 15260, 16568, 18620, 19075, 20710, 21364, 21800, 23275, 26600, 26705, 28994, 30520, 37240, 38150, 41420, 42728, 46550, 51775, 53410, 57988, 72485, 76300, 82840, 93100, 101479, 103550, 106820, 115976, 133525, 144970, 152600, 186200, 202958, 207100, 213640, 267050, 289940, 362425, 405916, 414200, 507395, 534100, 579880, 724850, 811832, 1014790, 1068200, 1449700, 2029580, 2536975, 2899400, 4059160, 5073950, 10147900, 20295800]

約数ペア:

[(1, 20295800), (2, 10147900), (4, 5073950), (5, 4059160), (7, 2899400), (8, 2536975), (10, 2029580), (14, 1449700), (19, 1068200), (20, 1014790), (25, 811832), (28, 724850), (35, 579880), (38, 534100), (40, 507395), (49, 414200), (50, 405916), (56, 362425), (70, 289940), (76, 267050), (95, 213640), (98, 207100), (100, 202958), (109, 186200), (133, 152600), (140, 144970), (152, 133525), (175, 115976), (190, 106820), (196, 103550), (200, 101479), (218, 93100), (245, 82840), (266, 76300), (280, 72485), (350, 57988), (380, 53410), (392, 51775), (436, 46550), (475, 42728), (490, 41420), (532, 38150), (545, 37240), (665, 30520), (700, 28994), (760, 26705), (763, 26600), (872, 23275), (931, 21800), (950, 21364), (980, 20710), (1064, 19075), (1090, 18620), (1225, 16568), (1330, 15260), (1400, 14497), (1526, 13300), (1862, 10900), (1900, 10682), (1960, 10355), (2071, 9800), (2180, 9310), (2450, 8284), (2660, 7630), (2725, 7448), (3052, 6650), (3325, 6104), (3724, 5450), (3800, 5341), (3815, 5320), (4142, 4900), (4360, 4655)]