81939060

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:487

約数の個数: 192

約数和(自身を含む): 297561600

約数和(自身を除く): 215622540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 53, 54, 60, 63, 70, 84, 90, 105, 106, 108, 126, 135, 140, 159, 180, 189, 210, 212, 252, 265, 270, 315, 318, 371, 378, 409, 420, 477, 530, 540, 630, 636, 742, 756, 795, 818, 945, 954, 1060, 1113, 1227, 1260, 1431, 1484, 1590, 1636, 1855, 1890, 1908, 2045, 2226, 2385, 2454, 2862, 2863, 3180, 3339, 3681, 3710, 3780, 4090, 4452, 4770, 4908, 5565, 5724, 5726, 6135, 6678, 7155, 7362, 7420, 8180, 8589, 9540, 10017, 11043, 11130, 11452, 12270, 13356, 14310, 14315, 14724, 16695, 17178, 18405, 20034, 21677, 22086, 22260, 24540, 25767, 28620, 28630, 33390, 34356, 36810, 40068, 42945, 43354, 44172, 50085, 51534, 55215, 57260, 65031, 66780, 73620, 77301, 85890, 86708, 100170, 103068, 108385, 110430, 128835, 130062, 151739, 154602, 171780, 195093, 200340, 216770, 220860, 257670, 260124, 303478, 309204, 325155, 386505, 390186, 433540, 455217, 515340, 585279, 606956, 650310, 758695, 773010, 780372, 910434, 975465, 1170558, 1300620, 1365651, 1517390, 1546020, 1820868, 1950930, 2276085, 2341116, 2731302, 2926395, 3034780, 3901860, 4096953, 4552170, 5462604, 5852790, 6828255, 8193906, 9104340, 11705580, 13656510, 16387812, 20484765, 27313020, 40969530, 81939060]

約数ペア:

[(1, 81939060), (2, 40969530), (3, 27313020), (4, 20484765), (5, 16387812), (6, 13656510), (7, 11705580), (9, 9104340), (10, 8193906), (12, 6828255), (14, 5852790), (15, 5462604), (18, 4552170), (20, 4096953), (21, 3901860), (27, 3034780), (28, 2926395), (30, 2731302), (35, 2341116), (36, 2276085), (42, 1950930), (45, 1820868), (53, 1546020), (54, 1517390), (60, 1365651), (63, 1300620), (70, 1170558), (84, 975465), (90, 910434), (105, 780372), (106, 773010), (108, 758695), (126, 650310), (135, 606956), (140, 585279), (159, 515340), (180, 455217), (189, 433540), (210, 390186), (212, 386505), (252, 325155), (265, 309204), (270, 303478), (315, 260124), (318, 257670), (371, 220860), (378, 216770), (409, 200340), (420, 195093), (477, 171780), (530, 154602), (540, 151739), (630, 130062), (636, 128835), (742, 110430), (756, 108385), (795, 103068), (818, 100170), (945, 86708), (954, 85890), (1060, 77301), (1113, 73620), (1227, 66780), (1260, 65031), (1431, 57260), (1484, 55215), (1590, 51534), (1636, 50085), (1855, 44172), (1890, 43354), (1908, 42945), (2045, 40068), (2226, 36810), (2385, 34356), (2454, 33390), (2862, 28630), (2863, 28620), (3180, 25767), (3339, 24540), (3681, 22260), (3710, 22086), (3780, 21677), (4090, 20034), (4452, 18405), (4770, 17178), (4908, 16695), (5565, 14724), (5724, 14315), (5726, 14310), (6135, 13356), (6678, 12270), (7155, 11452), (7362, 11130), (7420, 11043), (8180, 10017), (8589, 9540)]