20806800

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2477}}^1$

素因数の和:2505

約数の個数: 120

約数和(自身を含む): 76203456

約数和(自身を除く): 55396656

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2477, 2800, 4200, 4954, 7431, 8400, 9908, 12385, 14862, 17339, 19816, 24770, 29724, 34678, 37155, 39632, 49540, 52017, 59448, 61925, 69356, 74310, 86695, 99080, 104034, 118896, 123850, 138712, 148620, 173390, 185775, 198160, 208068, 247700, 260085, 277424, 297240, 346780, 371550, 416136, 433475, 495400, 520170, 594480, 693560, 743100, 832272, 866950, 990800, 1040340, 1300425, 1387120, 1486200, 1733900, 2080680, 2600850, 2972400, 3467800, 4161360, 5201700, 6935600, 10403400, 20806800]

約数ペア:

[(1, 20806800), (2, 10403400), (3, 6935600), (4, 5201700), (5, 4161360), (6, 3467800), (7, 2972400), (8, 2600850), (10, 2080680), (12, 1733900), (14, 1486200), (15, 1387120), (16, 1300425), (20, 1040340), (21, 990800), (24, 866950), (25, 832272), (28, 743100), (30, 693560), (35, 594480), (40, 520170), (42, 495400), (48, 433475), (50, 416136), (56, 371550), (60, 346780), (70, 297240), (75, 277424), (80, 260085), (84, 247700), (100, 208068), (105, 198160), (112, 185775), (120, 173390), (140, 148620), (150, 138712), (168, 123850), (175, 118896), (200, 104034), (210, 99080), (240, 86695), (280, 74310), (300, 69356), (336, 61925), (350, 59448), (400, 52017), (420, 49540), (525, 39632), (560, 37155), (600, 34678), (700, 29724), (840, 24770), (1050, 19816), (1200, 17339), (1400, 14862), (1680, 12385), (2100, 9908), (2477, 8400), (2800, 7431), (4200, 4954)]