205515540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{3061}}^1$

素因数の和:3449

約数の個数: 72

約数和(自身を含む): 625272648

約数和(自身を除く): 419757108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 373, 746, 1119, 1492, 1865, 2238, 3061, 3357, 3730, 4476, 5595, 6122, 6714, 7460, 9183, 11190, 12244, 13428, 15305, 16785, 18366, 22380, 27549, 30610, 33570, 36732, 45915, 55098, 61220, 67140, 91830, 110196, 137745, 183660, 275490, 550980, 1141753, 2283506, 3425259, 4567012, 5708765, 6850518, 10275777, 11417530, 13701036, 17126295, 20551554, 22835060, 34252590, 41103108, 51378885, 68505180, 102757770, 205515540]

約数ペア:

[(1, 205515540), (2, 102757770), (3, 68505180), (4, 51378885), (5, 41103108), (6, 34252590), (9, 22835060), (10, 20551554), (12, 17126295), (15, 13701036), (18, 11417530), (20, 10275777), (30, 6850518), (36, 5708765), (45, 4567012), (60, 3425259), (90, 2283506), (180, 1141753), (373, 550980), (746, 275490), (1119, 183660), (1492, 137745), (1865, 110196), (2238, 91830), (3061, 67140), (3357, 61220), (3730, 55098), (4476, 45915), (5595, 36732), (6122, 33570), (6714, 30610), (7460, 27549), (9183, 22380), (11190, 18366), (12244, 16785), (13428, 15305)]