261676680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3299}}^1$

素因数の和:3974

約数の個数: 64

約数和(自身を含む): 786456000

約数和(自身を除く): 524779320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 661, 1322, 1983, 2644, 3299, 3305, 3966, 5288, 6598, 6610, 7932, 9897, 9915, 13196, 13220, 15864, 16495, 19794, 19830, 26392, 26440, 32990, 39588, 39660, 49485, 65980, 79176, 79320, 98970, 131960, 197940, 395880, 2180639, 4361278, 6541917, 8722556, 10903195, 13083834, 17445112, 21806390, 26167668, 32709585, 43612780, 52335336, 65419170, 87225560, 130838340, 261676680]

約数ペア:

[(1, 261676680), (2, 130838340), (3, 87225560), (4, 65419170), (5, 52335336), (6, 43612780), (8, 32709585), (10, 26167668), (12, 21806390), (15, 17445112), (20, 13083834), (24, 10903195), (30, 8722556), (40, 6541917), (60, 4361278), (120, 2180639), (661, 395880), (1322, 197940), (1983, 131960), (2644, 98970), (3299, 79320), (3305, 79176), (3966, 65980), (5288, 49485), (6598, 39660), (6610, 39588), (7932, 32990), (9897, 26440), (9915, 26392), (13196, 19830), (13220, 19794), (15864, 16495)]