20403913600

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{130127}}^1$

素因数の和:130165

約数の個数: 144

約数和(自身を含む): 58633724880

約数和(自身を除く): 38229811280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 448, 490, 560, 640, 700, 784, 800, 896, 980, 1120, 1225, 1400, 1568, 1600, 1960, 2240, 2450, 2800, 3136, 3200, 3920, 4480, 4900, 5600, 6272, 7840, 9800, 11200, 15680, 19600, 22400, 31360, 39200, 78400, 130127, 156800, 260254, 520508, 650635, 910889, 1041016, 1301270, 1821778, 2082032, 2602540, 3253175, 3643556, 4164064, 4554445, 5205080, 6376223, 6506350, 7287112, 8328128, 9108890, 10410160, 12752446, 13012700, 14574224, 16656256, 18217780, 20820320, 22772225, 25504892, 26025400, 29148448, 31881115, 36435560, 41640640, 45544450, 51009784, 52050800, 58296896, 63762230, 72871120, 83281280, 91088900, 102019568, 104101600, 116593792, 127524460, 145742240, 159405575, 182177800, 204039136, 208203200, 255048920, 291484480, 318811150, 364355600, 408078272, 416406400, 510097840, 582968960, 637622300, 728711200, 816156544, 1020195680, 1275244600, 1457422400, 2040391360, 2550489200, 2914844800, 4080782720, 5100978400, 10201956800, 20403913600]

約数ペア:

[(1, 20403913600), (2, 10201956800), (4, 5100978400), (5, 4080782720), (7, 2914844800), (8, 2550489200), (10, 2040391360), (14, 1457422400), (16, 1275244600), (20, 1020195680), (25, 816156544), (28, 728711200), (32, 637622300), (35, 582968960), (40, 510097840), (49, 416406400), (50, 408078272), (56, 364355600), (64, 318811150), (70, 291484480), (80, 255048920), (98, 208203200), (100, 204039136), (112, 182177800), (128, 159405575), (140, 145742240), (160, 127524460), (175, 116593792), (196, 104101600), (200, 102019568), (224, 91088900), (245, 83281280), (280, 72871120), (320, 63762230), (350, 58296896), (392, 52050800), (400, 51009784), (448, 45544450), (490, 41640640), (560, 36435560), (640, 31881115), (700, 29148448), (784, 26025400), (800, 25504892), (896, 22772225), (980, 20820320), (1120, 18217780), (1225, 16656256), (1400, 14574224), (1568, 13012700), (1600, 12752446), (1960, 10410160), (2240, 9108890), (2450, 8328128), (2800, 7287112), (3136, 6506350), (3200, 6376223), (3920, 5205080), (4480, 4554445), (4900, 4164064), (5600, 3643556), (6272, 3253175), (7840, 2602540), (9800, 2082032), (11200, 1821778), (15680, 1301270), (19600, 1041016), (22400, 910889), (31360, 650635), (39200, 520508), (78400, 260254), (130127, 156800)]