20188974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25533906

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 59, 78, 82, 107, 118, 123, 177, 214, 246, 321, 354, 533, 642, 767, 1066, 1391, 1534, 1599, 2301, 2419, 2782, 3198, 4173, 4387, 4602, 4838, 6313, 7257, 8346, 8774, 12626, 13161, 14514, 18939, 26322, 31447, 37878, 57031, 62894, 82069, 94341, 114062, 164138, 171093, 188682, 246207, 258833, 342186, 492414, 517666, 776499, 1552998, 3364829, 6729658, 10094487, 20188974]

約数ペア:

[(1, 20188974), (2, 10094487), (3, 6729658), (6, 3364829), (13, 1552998), (26, 776499), (39, 517666), (41, 492414), (59, 342186), (78, 258833), (82, 246207), (107, 188682), (118, 171093), (123, 164138), (177, 114062), (214, 94341), (246, 82069), (321, 62894), (354, 57031), (533, 37878), (642, 31447), (767, 26322), (1066, 18939), (1391, 14514), (1534, 13161), (1599, 12626), (2301, 8774), (2419, 8346), (2782, 7257), (3198, 6313), (4173, 4838), (4387, 4602)]