77568920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 209018880

約数和(自身を除く): 131449960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 71, 88, 104, 110, 130, 142, 143, 191, 220, 260, 284, 286, 355, 382, 440, 520, 568, 572, 710, 715, 764, 781, 923, 955, 1144, 1420, 1430, 1528, 1562, 1846, 1910, 2101, 2483, 2840, 2860, 3124, 3692, 3820, 3905, 4202, 4615, 4966, 5720, 6248, 7384, 7640, 7810, 8404, 9230, 9932, 10153, 10505, 12415, 13561, 15620, 16808, 18460, 19864, 20306, 21010, 24830, 27122, 27313, 31240, 36920, 40612, 42020, 49660, 50765, 54244, 54626, 67805, 81224, 84040, 99320, 101530, 108488, 109252, 135610, 136565, 149171, 176293, 203060, 218504, 271220, 273130, 298342, 352586, 406120, 542440, 546260, 596684, 705172, 745855, 881465, 1092520, 1193368, 1410344, 1491710, 1762930, 1939223, 2983420, 3525860, 3878446, 5966840, 7051720, 7756892, 9696115, 15513784, 19392230, 38784460, 77568920]

約数ペア:

[(1, 77568920), (2, 38784460), (4, 19392230), (5, 15513784), (8, 9696115), (10, 7756892), (11, 7051720), (13, 5966840), (20, 3878446), (22, 3525860), (26, 2983420), (40, 1939223), (44, 1762930), (52, 1491710), (55, 1410344), (65, 1193368), (71, 1092520), (88, 881465), (104, 745855), (110, 705172), (130, 596684), (142, 546260), (143, 542440), (191, 406120), (220, 352586), (260, 298342), (284, 273130), (286, 271220), (355, 218504), (382, 203060), (440, 176293), (520, 149171), (568, 136565), (572, 135610), (710, 109252), (715, 108488), (764, 101530), (781, 99320), (923, 84040), (955, 81224), (1144, 67805), (1420, 54626), (1430, 54244), (1528, 50765), (1562, 49660), (1846, 42020), (1910, 40612), (2101, 36920), (2483, 31240), (2840, 27313), (2860, 27122), (3124, 24830), (3692, 21010), (3820, 20306), (3905, 19864), (4202, 18460), (4615, 16808), (4966, 15620), (5720, 13561), (6248, 12415), (7384, 10505), (7640, 10153), (7810, 9932), (8404, 9230)]