20766460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 52581312

約数和(自身を除く): 31814852

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 53, 55, 65, 106, 110, 130, 137, 143, 212, 220, 260, 265, 274, 286, 530, 548, 572, 583, 685, 689, 715, 1060, 1166, 1370, 1378, 1430, 1507, 1781, 2332, 2740, 2756, 2860, 2915, 3014, 3445, 3562, 5830, 6028, 6890, 7124, 7261, 7535, 7579, 8905, 11660, 13780, 14522, 15070, 15158, 17810, 19591, 29044, 30140, 30316, 35620, 36305, 37895, 39182, 72610, 75790, 78364, 79871, 94393, 97955, 145220, 151580, 159742, 188786, 195910, 319484, 377572, 391820, 399355, 471965, 798710, 943930, 1038323, 1597420, 1887860, 2076646, 4153292, 5191615, 10383230, 20766460]

約数ペア:

[(1, 20766460), (2, 10383230), (4, 5191615), (5, 4153292), (10, 2076646), (11, 1887860), (13, 1597420), (20, 1038323), (22, 943930), (26, 798710), (44, 471965), (52, 399355), (53, 391820), (55, 377572), (65, 319484), (106, 195910), (110, 188786), (130, 159742), (137, 151580), (143, 145220), (212, 97955), (220, 94393), (260, 79871), (265, 78364), (274, 75790), (286, 72610), (530, 39182), (548, 37895), (572, 36305), (583, 35620), (685, 30316), (689, 30140), (715, 29044), (1060, 19591), (1166, 17810), (1370, 15158), (1378, 15070), (1430, 14522), (1507, 13780), (1781, 11660), (2332, 8905), (2740, 7579), (2756, 7535), (2860, 7261), (2915, 7124), (3014, 6890), (3445, 6028), (3562, 5830)]