28904207840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{14537}}^1$

素因数の和:14629

約数の個数: 144

約数和(自身を含む): 74231376912

約数和(自身を除く): 45327169072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 289, 340, 344, 430, 544, 578, 680, 688, 731, 860, 1156, 1360, 1376, 1445, 1462, 1720, 2312, 2720, 2890, 2924, 3440, 3655, 4624, 5780, 5848, 6880, 7310, 9248, 11560, 11696, 12427, 14537, 14620, 23120, 23392, 24854, 29074, 29240, 46240, 49708, 58148, 58480, 62135, 72685, 99416, 116296, 116960, 124270, 145370, 198832, 232592, 247129, 248540, 290740, 397664, 465184, 494258, 497080, 581480, 625091, 988516, 994160, 1162960, 1235645, 1250182, 1977032, 1988320, 2325920, 2471290, 2500364, 3125455, 3954064, 4201193, 4942580, 5000728, 6250910, 7908128, 8402386, 9885160, 10001456, 10626547, 12501820, 16804772, 19770320, 20002912, 21005965, 21253094, 25003640, 33609544, 39540640, 42011930, 42506188, 50007280, 53132735, 67219088, 84023860, 85012376, 100014560, 106265470, 134438176, 168047720, 170024752, 180651299, 212530940, 336095440, 340049504, 361302598, 425061880, 672190880, 722605196, 850123760, 903256495, 1445210392, 1700247520, 1806512990, 2890420784, 3613025980, 5780841568, 7226051960, 14452103920, 28904207840]

約数ペア:

[(1, 28904207840), (2, 14452103920), (4, 7226051960), (5, 5780841568), (8, 3613025980), (10, 2890420784), (16, 1806512990), (17, 1700247520), (20, 1445210392), (32, 903256495), (34, 850123760), (40, 722605196), (43, 672190880), (68, 425061880), (80, 361302598), (85, 340049504), (86, 336095440), (136, 212530940), (160, 180651299), (170, 170024752), (172, 168047720), (215, 134438176), (272, 106265470), (289, 100014560), (340, 85012376), (344, 84023860), (430, 67219088), (544, 53132735), (578, 50007280), (680, 42506188), (688, 42011930), (731, 39540640), (860, 33609544), (1156, 25003640), (1360, 21253094), (1376, 21005965), (1445, 20002912), (1462, 19770320), (1720, 16804772), (2312, 12501820), (2720, 10626547), (2890, 10001456), (2924, 9885160), (3440, 8402386), (3655, 7908128), (4624, 6250910), (5780, 5000728), (5848, 4942580), (6880, 4201193), (7310, 3954064), (9248, 3125455), (11560, 2500364), (11696, 2471290), (12427, 2325920), (14537, 1988320), (14620, 1977032), (23120, 1250182), (23392, 1235645), (24854, 1162960), (29074, 994160), (29240, 988516), (46240, 625091), (49708, 581480), (58148, 497080), (58480, 494258), (62135, 465184), (72685, 397664), (99416, 290740), (116296, 248540), (116960, 247129), (124270, 232592), (145370, 198832)]