78990340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 198132480

約数和(自身を除く): 119142140

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 71, 110, 130, 142, 143, 220, 260, 284, 286, 355, 389, 572, 710, 715, 778, 781, 923, 1420, 1430, 1556, 1562, 1846, 1945, 2860, 3124, 3692, 3890, 3905, 4279, 4615, 5057, 7780, 7810, 8558, 9230, 10114, 10153, 15620, 17116, 18460, 20228, 20306, 21395, 25285, 27619, 40612, 42790, 50570, 50765, 55238, 55627, 85580, 101140, 101530, 110476, 111254, 138095, 203060, 222508, 276190, 278135, 303809, 359047, 552380, 556270, 607618, 718094, 1112540, 1215236, 1436188, 1519045, 1795235, 3038090, 3590470, 3949517, 6076180, 7180940, 7899034, 15798068, 19747585, 39495170, 78990340]

約数ペア:

[(1, 78990340), (2, 39495170), (4, 19747585), (5, 15798068), (10, 7899034), (11, 7180940), (13, 6076180), (20, 3949517), (22, 3590470), (26, 3038090), (44, 1795235), (52, 1519045), (55, 1436188), (65, 1215236), (71, 1112540), (110, 718094), (130, 607618), (142, 556270), (143, 552380), (220, 359047), (260, 303809), (284, 278135), (286, 276190), (355, 222508), (389, 203060), (572, 138095), (710, 111254), (715, 110476), (778, 101530), (781, 101140), (923, 85580), (1420, 55627), (1430, 55238), (1556, 50765), (1562, 50570), (1846, 42790), (1945, 40612), (2860, 27619), (3124, 25285), (3692, 21395), (3890, 20306), (3905, 20228), (4279, 18460), (4615, 17116), (5057, 15620), (7780, 10153), (7810, 10114), (8558, 9230)]