2640495680

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:305

約数の個数: 224

約数和(自身を含む): 6910230528

約数和(自身を除く): 4269734848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 71, 80, 92, 115, 124, 142, 155, 160, 163, 184, 230, 248, 284, 310, 320, 326, 355, 368, 460, 496, 568, 620, 652, 710, 713, 736, 815, 920, 992, 1136, 1240, 1304, 1420, 1426, 1472, 1630, 1633, 1840, 1984, 2201, 2272, 2480, 2608, 2840, 2852, 3260, 3266, 3565, 3680, 3749, 4402, 4544, 4960, 5053, 5216, 5680, 5704, 6520, 6532, 7130, 7360, 7498, 8165, 8804, 9920, 10106, 10432, 11005, 11360, 11408, 11573, 13040, 13064, 14260, 14996, 16330, 17608, 18745, 20212, 22010, 22720, 22816, 23146, 25265, 26080, 26128, 28520, 29992, 32660, 35216, 37490, 40424, 44020, 45632, 46292, 50530, 50623, 52160, 52256, 57040, 57865, 59984, 65320, 70432, 74980, 80848, 88040, 92584, 101060, 101246, 104512, 114080, 115730, 116219, 119968, 130640, 140864, 149960, 161696, 176080, 185168, 202120, 202492, 228160, 231460, 232438, 239936, 253115, 261280, 266179, 299920, 323392, 352160, 358763, 370336, 404240, 404984, 462920, 464876, 506230, 522560, 532358, 581095, 599840, 704320, 717526, 740672, 808480, 809968, 925840, 929752, 1012460, 1064716, 1162190, 1199680, 1330895, 1435052, 1616960, 1619936, 1793815, 1851680, 1859504, 2024920, 2129432, 2324380, 2661790, 2870104, 3239872, 3587630, 3703360, 3719008, 4049840, 4258864, 4648760, 5323580, 5740208, 7175260, 7438016, 8099680, 8251549, 8517728, 9297520, 10647160, 11480416, 14350520, 16199360, 16503098, 17035456, 18595040, 21294320, 22960832, 28701040, 33006196, 37190080, 41257745, 42588640, 57402080, 66012392, 82515490, 85177280, 114804160, 132024784, 165030980, 264049568, 330061960, 528099136, 660123920, 1320247840, 2640495680]

約数ペア:

[(1, 2640495680), (2, 1320247840), (4, 660123920), (5, 528099136), (8, 330061960), (10, 264049568), (16, 165030980), (20, 132024784), (23, 114804160), (31, 85177280), (32, 82515490), (40, 66012392), (46, 57402080), (62, 42588640), (64, 41257745), (71, 37190080), (80, 33006196), (92, 28701040), (115, 22960832), (124, 21294320), (142, 18595040), (155, 17035456), (160, 16503098), (163, 16199360), (184, 14350520), (230, 11480416), (248, 10647160), (284, 9297520), (310, 8517728), (320, 8251549), (326, 8099680), (355, 7438016), (368, 7175260), (460, 5740208), (496, 5323580), (568, 4648760), (620, 4258864), (652, 4049840), (710, 3719008), (713, 3703360), (736, 3587630), (815, 3239872), (920, 2870104), (992, 2661790), (1136, 2324380), (1240, 2129432), (1304, 2024920), (1420, 1859504), (1426, 1851680), (1472, 1793815), (1630, 1619936), (1633, 1616960), (1840, 1435052), (1984, 1330895), (2201, 1199680), (2272, 1162190), (2480, 1064716), (2608, 1012460), (2840, 929752), (2852, 925840), (3260, 809968), (3266, 808480), (3565, 740672), (3680, 717526), (3749, 704320), (4402, 599840), (4544, 581095), (4960, 532358), (5053, 522560), (5216, 506230), (5680, 464876), (5704, 462920), (6520, 404984), (6532, 404240), (7130, 370336), (7360, 358763), (7498, 352160), (8165, 323392), (8804, 299920), (9920, 266179), (10106, 261280), (10432, 253115), (11005, 239936), (11360, 232438), (11408, 231460), (11573, 228160), (13040, 202492), (13064, 202120), (14260, 185168), (14996, 176080), (16330, 161696), (17608, 149960), (18745, 140864), (20212, 130640), (22010, 119968), (22720, 116219), (22816, 115730), (23146, 114080), (25265, 104512), (26080, 101246), (26128, 101060), (28520, 92584), (29992, 88040), (32660, 80848), (35216, 74980), (37490, 70432), (40424, 65320), (44020, 59984), (45632, 57865), (46292, 57040), (50530, 52256), (50623, 52160)]