281521920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{439}}^1$

素因数の和:630

約数の個数: 144

約数和(自身を含む): 906554880

約数和(自身を除く): 625032960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 167, 192, 240, 256, 320, 334, 384, 439, 480, 501, 640, 668, 768, 835, 878, 960, 1002, 1280, 1317, 1336, 1670, 1756, 1920, 2004, 2195, 2505, 2634, 2672, 3340, 3512, 3840, 4008, 4390, 5010, 5268, 5344, 6585, 6680, 7024, 8016, 8780, 10020, 10536, 10688, 13170, 13360, 14048, 16032, 17560, 20040, 21072, 21376, 26340, 26720, 28096, 32064, 35120, 40080, 42144, 42752, 52680, 53440, 56192, 64128, 70240, 73313, 80160, 84288, 105360, 106880, 112384, 128256, 140480, 146626, 160320, 168576, 210720, 213760, 219939, 280960, 293252, 320640, 337152, 366565, 421440, 439878, 561920, 586504, 641280, 733130, 842880, 879756, 1099695, 1173008, 1466260, 1685760, 1759512, 2199390, 2346016, 2932520, 3519024, 4398780, 4692032, 5865040, 7038048, 8797560, 9384064, 11730080, 14076096, 17595120, 18768128, 23460160, 28152192, 35190240, 46920320, 56304384, 70380480, 93840640, 140760960, 281521920]

約数ペア:

[(1, 281521920), (2, 140760960), (3, 93840640), (4, 70380480), (5, 56304384), (6, 46920320), (8, 35190240), (10, 28152192), (12, 23460160), (15, 18768128), (16, 17595120), (20, 14076096), (24, 11730080), (30, 9384064), (32, 8797560), (40, 7038048), (48, 5865040), (60, 4692032), (64, 4398780), (80, 3519024), (96, 2932520), (120, 2346016), (128, 2199390), (160, 1759512), (167, 1685760), (192, 1466260), (240, 1173008), (256, 1099695), (320, 879756), (334, 842880), (384, 733130), (439, 641280), (480, 586504), (501, 561920), (640, 439878), (668, 421440), (768, 366565), (835, 337152), (878, 320640), (960, 293252), (1002, 280960), (1280, 219939), (1317, 213760), (1336, 210720), (1670, 168576), (1756, 160320), (1920, 146626), (2004, 140480), (2195, 128256), (2505, 112384), (2634, 106880), (2672, 105360), (3340, 84288), (3512, 80160), (3840, 73313), (4008, 70240), (4390, 64128), (5010, 56192), (5268, 53440), (5344, 52680), (6585, 42752), (6680, 42144), (7024, 40080), (8016, 35120), (8780, 32064), (10020, 28096), (10536, 26720), (10688, 26340), (13170, 21376), (13360, 21072), (14048, 20040), (16032, 17560)]