256271520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:347

約数の個数: 192

約数和(自身を含む): 853493760

約数和(自身を除く): 597222240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 139, 160, 167, 184, 230, 240, 276, 278, 334, 345, 368, 417, 460, 480, 501, 552, 556, 668, 690, 695, 736, 834, 835, 920, 1002, 1104, 1112, 1336, 1380, 1390, 1668, 1670, 1840, 2004, 2085, 2208, 2224, 2505, 2672, 2760, 2780, 3197, 3336, 3340, 3680, 3841, 4008, 4170, 4448, 5010, 5344, 5520, 5560, 6394, 6672, 6680, 7682, 8016, 8340, 9591, 10020, 11040, 11120, 11523, 12788, 13344, 13360, 15364, 15985, 16032, 16680, 19182, 19205, 20040, 22240, 23046, 23213, 25576, 26720, 30728, 31970, 33360, 38364, 38410, 40080, 46092, 46426, 47955, 51152, 57615, 61456, 63940, 66720, 69639, 76728, 76820, 80160, 92184, 92852, 95910, 102304, 115230, 116065, 122912, 127880, 139278, 153456, 153640, 184368, 185704, 191820, 230460, 232130, 255760, 278556, 306912, 307280, 348195, 368736, 371408, 383640, 460920, 464260, 511520, 533899, 557112, 614560, 696390, 742816, 767280, 921840, 928520, 1067798, 1114224, 1392780, 1534560, 1601697, 1843680, 1857040, 2135596, 2228448, 2669495, 2785560, 3203394, 3714080, 4271192, 5338990, 5571120, 6406788, 8008485, 8542384, 10677980, 11142240, 12813576, 16016970, 17084768, 21355960, 25627152, 32033940, 42711920, 51254304, 64067880, 85423840, 128135760, 256271520]

約数ペア:

[(1, 256271520), (2, 128135760), (3, 85423840), (4, 64067880), (5, 51254304), (6, 42711920), (8, 32033940), (10, 25627152), (12, 21355960), (15, 17084768), (16, 16016970), (20, 12813576), (23, 11142240), (24, 10677980), (30, 8542384), (32, 8008485), (40, 6406788), (46, 5571120), (48, 5338990), (60, 4271192), (69, 3714080), (80, 3203394), (92, 2785560), (96, 2669495), (115, 2228448), (120, 2135596), (138, 1857040), (139, 1843680), (160, 1601697), (167, 1534560), (184, 1392780), (230, 1114224), (240, 1067798), (276, 928520), (278, 921840), (334, 767280), (345, 742816), (368, 696390), (417, 614560), (460, 557112), (480, 533899), (501, 511520), (552, 464260), (556, 460920), (668, 383640), (690, 371408), (695, 368736), (736, 348195), (834, 307280), (835, 306912), (920, 278556), (1002, 255760), (1104, 232130), (1112, 230460), (1336, 191820), (1380, 185704), (1390, 184368), (1668, 153640), (1670, 153456), (1840, 139278), (2004, 127880), (2085, 122912), (2208, 116065), (2224, 115230), (2505, 102304), (2672, 95910), (2760, 92852), (2780, 92184), (3197, 80160), (3336, 76820), (3340, 76728), (3680, 69639), (3841, 66720), (4008, 63940), (4170, 61456), (4448, 57615), (5010, 51152), (5344, 47955), (5520, 46426), (5560, 46092), (6394, 40080), (6672, 38410), (6680, 38364), (7682, 33360), (8016, 31970), (8340, 30728), (9591, 26720), (10020, 25576), (11040, 23213), (11120, 23046), (11523, 22240), (12788, 20040), (13344, 19205), (13360, 19182), (15364, 16680), (15985, 16032)]