656880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:63

約数の個数: 160

約数和(自身を含む): 2571264

約数和(自身を除く): 1914384

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 23, 24, 28, 30, 34, 35, 40, 42, 46, 48, 51, 56, 60, 68, 69, 70, 80, 84, 85, 92, 102, 105, 112, 115, 119, 120, 136, 138, 140, 161, 168, 170, 184, 204, 210, 230, 238, 240, 255, 272, 276, 280, 322, 336, 340, 345, 357, 368, 391, 408, 420, 460, 476, 483, 510, 552, 560, 595, 644, 680, 690, 714, 782, 805, 816, 840, 920, 952, 966, 1020, 1104, 1173, 1190, 1288, 1360, 1380, 1428, 1564, 1610, 1680, 1785, 1840, 1904, 1932, 1955, 2040, 2346, 2380, 2415, 2576, 2737, 2760, 2856, 3128, 3220, 3570, 3864, 3910, 4080, 4692, 4760, 4830, 5474, 5520, 5712, 5865, 6256, 6440, 7140, 7728, 7820, 8211, 9384, 9520, 9660, 10948, 11730, 12880, 13685, 14280, 15640, 16422, 18768, 19320, 21896, 23460, 27370, 28560, 31280, 32844, 38640, 41055, 43792, 46920, 54740, 65688, 82110, 93840, 109480, 131376, 164220, 218960, 328440, 656880]

約数ペア:

[(1, 656880), (2, 328440), (3, 218960), (4, 164220), (5, 131376), (6, 109480), (7, 93840), (8, 82110), (10, 65688), (12, 54740), (14, 46920), (15, 43792), (16, 41055), (17, 38640), (20, 32844), (21, 31280), (23, 28560), (24, 27370), (28, 23460), (30, 21896), (34, 19320), (35, 18768), (40, 16422), (42, 15640), (46, 14280), (48, 13685), (51, 12880), (56, 11730), (60, 10948), (68, 9660), (69, 9520), (70, 9384), (80, 8211), (84, 7820), (85, 7728), (92, 7140), (102, 6440), (105, 6256), (112, 5865), (115, 5712), (119, 5520), (120, 5474), (136, 4830), (138, 4760), (140, 4692), (161, 4080), (168, 3910), (170, 3864), (184, 3570), (204, 3220), (210, 3128), (230, 2856), (238, 2760), (240, 2737), (255, 2576), (272, 2415), (276, 2380), (280, 2346), (322, 2040), (336, 1955), (340, 1932), (345, 1904), (357, 1840), (368, 1785), (391, 1680), (408, 1610), (420, 1564), (460, 1428), (476, 1380), (483, 1360), (510, 1288), (552, 1190), (560, 1173), (595, 1104), (644, 1020), (680, 966), (690, 952), (714, 920), (782, 840), (805, 816)]