20080515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 40513536

約数和(自身を除く): 20433021

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 47, 65, 91, 105, 141, 195, 235, 273, 313, 329, 455, 611, 705, 939, 987, 1365, 1565, 1645, 1833, 2191, 3055, 4069, 4277, 4695, 4935, 6573, 9165, 10955, 12207, 12831, 14711, 20345, 21385, 28483, 32865, 44133, 61035, 64155, 73555, 85449, 102977, 142415, 191243, 220665, 308931, 427245, 514885, 573729, 956215, 1338701, 1544655, 2868645, 4016103, 6693505, 20080515]

約数ペア:

[(1, 20080515), (3, 6693505), (5, 4016103), (7, 2868645), (13, 1544655), (15, 1338701), (21, 956215), (35, 573729), (39, 514885), (47, 427245), (65, 308931), (91, 220665), (105, 191243), (141, 142415), (195, 102977), (235, 85449), (273, 73555), (313, 64155), (329, 61035), (455, 44133), (611, 32865), (705, 28483), (939, 21385), (987, 20345), (1365, 14711), (1565, 12831), (1645, 12207), (1833, 10955), (2191, 9165), (3055, 6573), (4069, 4935), (4277, 4695)]