2157578640

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{142697}}^1$

素因数の和:142726

約数の個数: 160

約数和(自身を含む): 8493384960

約数和(自身を除く): 6335806320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 142697, 285394, 428091, 570788, 713485, 856182, 998879, 1141576, 1284273, 1426970, 1712364, 1997758, 2140455, 2283152, 2568546, 2853940, 2996637, 3424728, 3852819, 3995516, 4280910, 4994395, 5137092, 5707880, 5993274, 6421365, 6849456, 7705638, 7991032, 8561820, 8989911, 9988790, 10274184, 11415760, 11986548, 12842730, 14983185, 15411276, 15982064, 17123640, 17979822, 19264095, 19977580, 20548368, 23973096, 25685460, 26969733, 29966370, 30822552, 34247280, 35959644, 38528190, 39955160, 44949555, 47946192, 51370920, 53939466, 59932740, 61645104, 71919288, 77056380, 79910320, 89899110, 102741840, 107878932, 119865480, 134848665, 143838576, 154112760, 179798220, 215757864, 239730960, 269697330, 308225520, 359596440, 431515728, 539394660, 719192880, 1078789320, 2157578640]

約数ペア:

[(1, 2157578640), (2, 1078789320), (3, 719192880), (4, 539394660), (5, 431515728), (6, 359596440), (7, 308225520), (8, 269697330), (9, 239730960), (10, 215757864), (12, 179798220), (14, 154112760), (15, 143838576), (16, 134848665), (18, 119865480), (20, 107878932), (21, 102741840), (24, 89899110), (27, 79910320), (28, 77056380), (30, 71919288), (35, 61645104), (36, 59932740), (40, 53939466), (42, 51370920), (45, 47946192), (48, 44949555), (54, 39955160), (56, 38528190), (60, 35959644), (63, 34247280), (70, 30822552), (72, 29966370), (80, 26969733), (84, 25685460), (90, 23973096), (105, 20548368), (108, 19977580), (112, 19264095), (120, 17979822), (126, 17123640), (135, 15982064), (140, 15411276), (144, 14983185), (168, 12842730), (180, 11986548), (189, 11415760), (210, 10274184), (216, 9988790), (240, 8989911), (252, 8561820), (270, 7991032), (280, 7705638), (315, 6849456), (336, 6421365), (360, 5993274), (378, 5707880), (420, 5137092), (432, 4994395), (504, 4280910), (540, 3995516), (560, 3852819), (630, 3424728), (720, 2996637), (756, 2853940), (840, 2568546), (945, 2283152), (1008, 2140455), (1080, 1997758), (1260, 1712364), (1512, 1426970), (1680, 1284273), (1890, 1141576), (2160, 998879), (2520, 856182), (3024, 713485), (3780, 570788), (5040, 428091), (7560, 285394), (15120, 142697)]