287181520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2693}}^1$

素因数の和:2780

約数の個数: 80

約数和(自身を含む): 705526272

約数和(自身を除く): 418344752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1240, 1333, 1720, 2480, 2666, 2693, 3440, 5332, 5386, 6665, 10664, 10772, 13330, 13465, 21328, 21544, 26660, 26930, 43088, 53320, 53860, 83483, 106640, 107720, 115799, 166966, 215440, 231598, 333932, 417415, 463196, 578995, 667864, 834830, 926392, 1157990, 1335728, 1669660, 1852784, 2315980, 3339320, 3589769, 4631960, 6678640, 7179538, 9263920, 14359076, 17948845, 28718152, 35897690, 57436304, 71795380, 143590760, 287181520]

約数ペア:

[(1, 287181520), (2, 143590760), (4, 71795380), (5, 57436304), (8, 35897690), (10, 28718152), (16, 17948845), (20, 14359076), (31, 9263920), (40, 7179538), (43, 6678640), (62, 4631960), (80, 3589769), (86, 3339320), (124, 2315980), (155, 1852784), (172, 1669660), (215, 1335728), (248, 1157990), (310, 926392), (344, 834830), (430, 667864), (496, 578995), (620, 463196), (688, 417415), (860, 333932), (1240, 231598), (1333, 215440), (1720, 166966), (2480, 115799), (2666, 107720), (2693, 106640), (3440, 83483), (5332, 53860), (5386, 53320), (6665, 43088), (10664, 26930), (10772, 26660), (13330, 21544), (13465, 21328)]