20681388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45362772

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 59, 63, 78, 84, 91, 107, 117, 118, 126, 156, 177, 182, 214, 234, 236, 252, 273, 321, 354, 364, 413, 428, 468, 531, 546, 642, 708, 749, 767, 819, 826, 963, 1062, 1092, 1239, 1284, 1391, 1498, 1534, 1638, 1652, 1926, 2124, 2247, 2301, 2478, 2782, 2996, 3068, 3276, 3717, 3852, 4173, 4494, 4602, 4956, 5369, 5564, 6313, 6741, 6903, 7434, 8346, 8988, 9204, 9737, 10738, 12519, 12626, 13482, 13806, 14868, 16107, 16692, 18939, 19474, 21476, 25038, 25252, 26964, 27612, 29211, 32214, 37878, 38948, 44191, 48321, 50076, 56817, 58422, 64428, 75756, 82069, 87633, 88382, 96642, 113634, 116844, 132573, 164138, 175266, 176764, 193284, 227268, 246207, 265146, 328276, 350532, 397719, 492414, 530292, 574483, 738621, 795438, 984828, 1148966, 1477242, 1590876, 1723449, 2297932, 2954484, 3446898, 5170347, 6893796, 10340694, 20681388]

約数ペア:

[(1, 20681388), (2, 10340694), (3, 6893796), (4, 5170347), (6, 3446898), (7, 2954484), (9, 2297932), (12, 1723449), (13, 1590876), (14, 1477242), (18, 1148966), (21, 984828), (26, 795438), (28, 738621), (36, 574483), (39, 530292), (42, 492414), (52, 397719), (59, 350532), (63, 328276), (78, 265146), (84, 246207), (91, 227268), (107, 193284), (117, 176764), (118, 175266), (126, 164138), (156, 132573), (177, 116844), (182, 113634), (214, 96642), (234, 88382), (236, 87633), (252, 82069), (273, 75756), (321, 64428), (354, 58422), (364, 56817), (413, 50076), (428, 48321), (468, 44191), (531, 38948), (546, 37878), (642, 32214), (708, 29211), (749, 27612), (767, 26964), (819, 25252), (826, 25038), (963, 21476), (1062, 19474), (1092, 18939), (1239, 16692), (1284, 16107), (1391, 14868), (1498, 13806), (1534, 13482), (1638, 12626), (1652, 12519), (1926, 10738), (2124, 9737), (2247, 9204), (2301, 8988), (2478, 8346), (2782, 7434), (2996, 6903), (3068, 6741), (3276, 6313), (3717, 5564), (3852, 5369), (4173, 4956), (4494, 4602)]